AOM Fiber-coupled Acousto-optic Modulators

Wavelength 415-1550 nm; Type Visible, IR; Operating Frequency 40-200 MHz; Active Aperture 1.5-6 mm; Optical Material Tellurium Dioxide Transmission through an acousto-optic (AO) device causes the input light to experience a frequency shift equal to the RF drive frequency. The acousto-optic frequency shifters (AOFS) from Gooch & Housego (G&H) are optimized for the needs of applications like interferometry, with the ability to achieve high extinction ratio between modes.The product line includes standard products with frequency shifts of over 300 MHz and integrated low-power AOFS modules in which the RF driver has been built into the housing. Frequency shifters for specific application, including frequency shifts up to 600 MHz, can be customized on request. The frequency shifters are manufactured using high quality tellurium dioxide (TeO2), grown and polished in-house, for lowest insertion loss and excellent power handling. Standard AOFS products are offered for wavelengths in the visible and NIR for use with fundamental and doubled Argon Ion, Nd:YAG, He:Ne, diode, dye, and Ti:Sapphire lasers. With standard frequency shifts of over 300 MHz and custom frequency shifts up to 600 MHz, as well as models for double-pass configurations, the frequency shifters match most research and industrial needs. Frequency shifters are highly efficient acousto-optic devices, requiring very low drive power to achieve the desired frequency shift. G&H’s AOFS designs typically use the slow shear mode, resulting in slow rise time, but requiring minimal power consumption (typically < 100 mW power draw). This allows to often package the driver with the AOFS for a compact and power-efficient solution. Applications: Interferometry; Laser Cooling; Laser Doppler Velocimetry; Laser Doppler Vibrometry (LDV); Optical Heterodyne Detection Series Wavelength Type Operating Frequency Active Aperture Optical Material Downloads AOMO 3080-125 415 - 900 nm Visible 80 MHz 2 mm Tellurium Dioxide Datasheet Driver Driver AOMO 3100-125 440 - 850 nm Visible 100 MHz 1.5 mm Tellurium Dioxide Datasheet Driver Driver AOMO 3200-125 470 - 690 nm Visible 200 MHz 1.5 mm Tellurium Dioxide Datasheet Driver Driver I-FS040-1.5S2C-3-GH83 532 nm Visible 40 MHz 1.5 mm Tellurium Dioxide Datasheet Driver   I-FS040-1.5S2C-1-GH66 532 nm Visible 40 MHz 1.5 mm Tellurium Dioxide Datasheet     I-FS040-2S2E-1-GH66 630 - 690 nm Visible 40 MHz 2 mm Tellurium Dioxide Datasheet     AOFS I-FS040-2S2E-3-OL3 630 - 690 nm Visible 40 MHz 2 mm Tellurium Dioxide Datasheet Driver   I-FS080-3S2E-3-LG5 632.8 nm Visible 80 MHz 3 mm Tellurium Dioxide Datasheet Driver   AOFS 4040-191 633 - 1064 nm IR 40 MHz 2 x 6 mm Tellurium Dioxide Datasheet Driver   I-FS040-2S2J-3-GH53 1550 nm IR 40 MHz 2 x 4 mm Tellurium Dioxide Datasheet Driver  

Type IR; Wavelength 700-1100 nm; Operating Frequency 38-80 MHz; Active Aperture 2-3 mm; Window Type Brewster, AR coated; Optical Material Fused Silica; Acousto-optic mode lockers (AOML) modulate the loss within a laser cavity at its resonant frequency, effectively “locking” the phase of the longitudinal modes to generate very narrow laser pulses of high intensity. Gooch & Housego’s mode lockers for Nd:YAG, Nd:YLF, Ti:Sapphire and Argon Ion lasers can modulate at up to 200 MHz, yielding near-theoretical mode locked laser pulse widths. Antireflection (AR) coated and Brewster angle options are available. Customized one-off mode lockers can be designed for demanding scientific and OEM applications.The acousto-optic mode lockers from Gooch & Housego are manufactured using high quality fused silica, polished and fabricated in-house to ensure high quality and reliability. >99% transmission at 1064 nm is achieved by using a durable in-house antireflection V-coat. Low scatter and tight quality controls ensure that every mode locker is capable of handling high peak laser power over the long term without damage. The standard mode lockers include operating frequencies from 38 MHz to 80 MHz. The more modes are locked together in phase, the shorter the pulse. G&H’s standing wave mode lockers can obtain near theoretical mode locked laser pulse widths, with industry-leading transmission performance. The high-Q mode lockers can be used for Nd:YAG, Nd:YLF, Ti:Sapphire and Argon ion lasers at near infrared wavelengths to achieve picosecond and femtosecond length pulses at repetition rates of up to 200 MHz. The short pulses generated are often used in applications like nonlinear optics, optical data storage, femtosecond micromachining and multiphoton microscopy. High repetition rates are often desired for scientific applications, including those using optical heterodyne detection for spectroscopy, LIDAR or telecommunications. RF driver selection impacts mode locking system performance. Active temperature control of the acoustic resonator can assist in controlling resonant frequency such that resonance at the precise frequency of the driver's oscillator can be maintained. We can assist choosing the right driver for your application. Contact our sales team to identify the best RF driver for your specific application.Applications: Femtosecond Micromachining; fs/ps Lasers (Nd:YAG, Nd:YLF, Ti:Sapphire, Argon Ion); LIDAR; Multiphoton Microscopy; Nonlinear Optics; Optical Data Storage; Optical Heterodyne Detection For Spectroscopy; Telecommunications Series Type Wavelength Operating Frequency Active Aperture Window Type Optical Material Downloads 12041-3-BR-TE AOML IR 700 - 1100 nm 41 MHz 2 mm Brewster Fused Silica Datasheet 12080-3-TE AOML IR 1064 nm 80 MHz 3 mm AR coated Fused Silica Datasheet 12038-3-TE AOML IR 1064 nm 38 MHz 3 mm AR coated Fused Silica Datasheet 12041-3-TE AOML IR 1064 nm 41 MHz 3 mm AR coated Fused Silica Datasheet 12050-3-TE AOML IR 1064 nm 50 MHz 3 mm AR coated Fused Silica Datasheet 12038-3-BR-TE AOML IR 700 - 1100 nm 38 MHz 2 mm Brewster Fused Silica Datasheet 12050-3-BR-TE AOML IR 700 - 1100 nm 50 MHz 2 mm Brewster Fused Silica Datasheet 12080-3-BR-TE AOML IR 700 - 1100 nm 80 MHz 2 mm Brewster Fused Silica Datasheet

Wavelength 5.5 µm-1090 nm; Rise / Fall Time 10-160 ns/mm; Active Aperture 0.1-9.6 mm; Operating Frequency 40-200 MHz; Optical Material Crystalline Quartz, Germanium, Tellurium Dioxide; Type IR, Mid-IR, Visible, UVAcousto-optic modulators (AOM) allow the intensity of light to be controlled and modulated at rates that far exceed mechanical shutters, even up to 70 MHz. The AO modulators available from Gooch & Housego (G&H) are optimized for low scatter and high laser damage threshold. Rise time, modulation rate, beam diameter and power handling requirements of the application need to be understood in order to identify the best acousto-optic modulator and RF driver solution.An acousto-optic modulator (AOM) uses sound waves within a crystal to create a diffraction grating. As the power of the applied RF signal is varied, the amount of diffracted light varies proportionally. Modulators can be used like a shutter (cycling light on and off at a set frequency), or as a variable attenuator (controlling the intensity of transmitted light dynamically).Contact our sales team to identify the best RF driver for your specific applicationApplications: Heterodyne Interferometry; Intensity Levelling; Intensity Modulation; Laser Cooling; Laser Doppler Velocimetry; Laser Doppler Vibrometry (LDV); Laser Linewidth Measurements; LIDAR; Marking; Material Processing; Micromachining; Printing; Via Drilling Series Wavelength Rise / Fall Time Active Aperture Operating Frequency Optical Material Type Downloads I-M0XX-XC11B76-P5-GH105 5.5 µm 120 ns/mm up to 9.6 mm 40.68 - 60 MHz Germanium N/A Datasheet Driver   I-M050-10C11V41-P3-GH75 9.4 µm 120 ns/mm up to 9.6 mm 40/60 MHz Germanium Mid-IR Datasheet Driver   I-M041-XXC11XXX-P5-GH77 10.6 µm, 9.4 µm 120 ns/mm up to 9.6 mm 40.68 MHz Germanium Mid-IR Datasheet Driver   AOMO 3200-1220 257 nm 10 ns 0.25 mm 200 MHz Crystalline Quartz UV Datasheet Driver   I-M110-3C10BB-3-GH27 AOM 300 - 400 nm 113 ns/mm 3 mm 110 MHz Crystalline Quartz UV Datasheet Driver   I-M110-2C10B6-3-GH26 AOM 400 - 540 nm 113 ns/mm 2 mm 110 MHz Crystalline Quartz Visible Datasheet Driver   AOMO 3080-125 415 - 900 nm 25 ns 2 mm 80 MHz Tellurium Dioxide Visible Datasheet Driver Driver AOMO 3080-120 440 - 850 nm 34 ns 1 mm 80 MHz Tellurium Dioxide Visible Datasheet Driver   AOMO 3110-120 440 - 850 nm 18 ns 0.6 mm 110 MHz Tellurium Dioxide Visible Datasheet Driver   AOMO 3100-125 440 - 850 nm 160 ns 1.5 mm 100 MHz Tellurium Dioxide Visible Datasheet Driver Driver AOMO 3110-121 442 - 488 nm 18 ns 0.6 mm 110 MHz Tellurium Dioxide Visible Datasheet Driver   AOMO 3200-120 442 - 488 nm 13 ns 0.45 mm 200 MHz Tellurium Dioxide Visible Datasheet Driver   AOMO 3200-121 442 - 488 nm 18 ns 0.32 nm 200 MHz Tellurium Dioxide Visible Datasheet Driver   AOMO 3200-125 470 - 690 nm 160 ns 1.5 mm 200 MHz Tellurium Dioxide Visible Datasheet Driver Driver AOMO 3200-124 780 - 850 nm 10 ns 0.32 mm 200 MHz Tellurium Dioxide IR Datasheet Driver   AOMO 3080-122 780 - 850 nm 25 ns 1 mm 80 MHz Tellurium Dioxide IR Datasheet Driver   AOMO 3200-1113 870 - 1250 nm 10 ns 0.1 mm 200 MHz Tellurium Dioxide IR Datasheet Driver   I-M041-2.5C10G-4-GH50 AOM 1030 - 1064 nm 113 ns/mm 2.5 mm 40.68 MHz Crystalline Quartz IR Datasheet Driver   I-M080-2C10G-4-AM3 AOM 1030 - 1064 nm 113 ns/mm 2 mm 80 MHz Crystalline Quartz IR Datasheet Driver   AOMO 3110-197 1030 - 1090 nm 18 ns 1.25 mm 110 MHz Tellurium Dioxide IR Datasheet Driver  

Type UV, Visible; Wavelength 350-850 nm; Number of Channels 4-24; Rise / Fall Time 7-23 ns; Active Aperture 0.18-0.5 mm; Operating Frequency 125-350 MHz; Acousto-optic multi-channel modulators (AOMC) allow multiple beams to be modulated or deflected independently by integrating an array of transducers with a single acousto-optic crystal. The AO multi-channel modulators manufactured by Gooch & Housego (G&H) feature reliable operation and high performance with minimized crosstalk thanks to proprietary optical and electrical designs to allow concurrent operation of up to 48 channels for modulation, and up to 8 channels for beam deflection. Multi-channel modulators are most often used for high speed applications like micromachining and direct-write lithography, as each beam can be modulated independently. They are also used to increase throughput when writing large media by writing multiple beams at the same time. A typical multi-channel modulator has parallel beams as input, each operated on by a different transducer to modulate its intensity. Available models have 2 to 48 channels for UV through NIR wavelengths, with rise times as short as 7 ns for apertures < 1 mm. Multi-channel RF drivers are available with analog or digital modulation.High laser damage threshold is achieved using low-scatter materials inspected to rigorous quality standards. We draw our own tellurium oxide (TeO2) and source high quality fused silica and crystalline quartz to ensure low insertion loss and excellent optical power handling.Applications: Marking; Material Processing; Micromachining; Printing Series Type Wavelength Number of Channels Rise / Fall Time Active Aperture Operating Frequency Optical Material Downloads AOMC 3160-8 UV 364 nm 8 21 ns 0.18 mm 160 MHz Fused Silica Datasheet AOMC 125-24 UV 350 - 365 nm 24 23 ns 0.5 mm 125 MHz Crystalline Quartz Datasheet AOMC 220-5 UV 413 nm 5 16 ns 0.24 mm 220 MHz Crystalline Quartz Datasheet AOMC 220-4 UV 350 - 365 nm 4 16 ns 0.24 mm 190 - 250 MHz Crystalline Quartz Datasheet AOMC 300-5 UV 413 nm 5 10 ns 0.2 mm 300 MHz Crystalline Quartz Datasheet AOMC 3350-6 Visible 350 - 850 nm 6 7 ns 0.33 mm 350 MHz Tellurium Dioxide Datasheet

Wavelength 1030-2100 nm; Active Aperture 1-8 mm; Operating Frequency 24-80 MHz; Optical Material Crystalline Quartz, Fused Silica; Type Water Cooled, Conduction CooledAn acousto-optic Q-switch (AOQS) works within a laser cavity to generate high intensity, pulsed light by actively controlling the Q-factor (loss) of the cavity. The acousto-optic Q-switches available from Gooch & Housego (G&H) are rugged, reliable and long-lasting. The product offering includes low insertion loss and highly efficient acousto-optic Q-switches capable of handling very high peak power. Particular attention is used to match the cavity length, repetition rate, wavelength, beam diameter, polarization state and output power of a laser to the best acousto-optic Q-switch solution.G&H offers off-the-shelf solutions for polarized or unpolarized lasers at near infrared wavelengths. G&H can accommodate large lamp pumped multimode laser beam diameters (up to 8 mm) as well as small compact diode pumped beam diameters (< 1 mm) with both water and conduction cooling. Specialized designs meet unique needs such as ultra-high single pass loss (up to 96%), high switching speeds and premium pulse-to-pulse stability.A full line of RF drivers designed specifically for Q-switching is available, with rapid fall times, tight synchronization, operation in either fixed or variable mode and advanced capabilities like first pulse suppression or multichannel operation to drive multiple Q-switches within the same cavity.Applications: Laser Marking; Lithography; Material Processing; Medical Surgery; Micromachining Series Wavelength Active Aperture Operating Frequency Optical Material Type Downloads I-QS080-1C10G-8-GH28 Q-Switch 1030 - 1064 nm 1 mm 80 MHz Crystalline Quartz Conduction-Cooled Datasheet Driver Super Q-Switch 1064 nm 1.6, 2, 3, 4, 5, 6.5 mm 24, 27.12 MHz Crystalline Quartz Water Cooled Datasheet Driver Industry Standard AO Q-Switch 1064 nm 1.6, 2, 3, 4, 5, 6.5, 8 mm 24, 27.12, 40.68, 68 MHz Fused Silica Water Cooled Datasheet Driver Stallion Q-Switch 1064 nm 1.6, 2, 3, 4, 5, 6.5, 8 mm 24, 27.12, 40.68, 68 MHz Fused Silica Water Cooled Datasheet Driver VHE AO Q-Switch 1064 nm 1.6, 2.5, 2, 3, 4 mm 68 MHz Crystalline Quartz Water Cooled Datasheet   I-QS041-1.8C10G-4-GH21 AO Q-Switch 1064 nm 1.8 mm 40.68 MHz Crystalline Quartz Conduction-Cooled Datasheet Driver I-QS080-1C10G-4-GH25 Q-Switch 1064 nm 1 mm 80 MHz Crystalline Quartz Conduction-Cooled Datasheet Driver I-QS080-0.5C10G-8-GH48 Q-Switch 1064 nm 0.5 mm 80 MHz Crystalline Quartz Conduction-Cooled Datasheet Driver I-QS080-1C10H-4-OS14 1319 - 1342 nm 1 mm 80 MHz Crystalline Quartz Conduction-Cooled Datasheet Driver I-QS027-4S4V2-x5-ST1 Q-Switch 1550 nm 4 mm 27.12 MHz Fused Silica Water Cooled Datasheet   I-QS041-2C10V5-4-HC1 Q-Switch 1900 - 2100 nm 2 mm 40.68 MHz Crystalline Quartz Conduction-Cooled Datasheet Driver I-QS041-5C10V5-x5-ST3 Q-Switch 2100 nm 5 mm 40.68 MHz Crystalline Quartz Water Cooled Datasheet Driver    

Wavelength 450-200 nm; Pigtail Type SM, PM; Rise / Fall Time 6-100 ns; Operating Frequency 40-300 MHz; Fiber-coupled acousto-optic modulators (FCAOM) offer a robust solution for amplitude modulation of fiber lasers, allowing direct control of the timing, intensity, and temporal shape of the laser output. Gooch & Housego’s (G&H) Fiber-Q® modulators offer high extinction ratio, low insertion loss and excellent stability in both polarization maintaining (PM) and non-PM formats at modulation frequencies up to 80 MHz for visible and infrared wavelengths. Built for reliability, the Fiber-Q® series of products features a rugged hermetic design in a compact, low-profile package, ideal for ease of integration into all-fiber and OEM systems, including medical laser systems.Each Fiber-Q® acousto-optic modulator requires an RF driver to generate the RF signal creating the acoustic wave within the embedded AO crystal. Modulation of the beam through the Fiber-Q will depend upon the frequency and intensity of the applied RF signal. Contact our sales team to identify the best RF driver for your specific application, taking into consideration the type of modulation required (digital or analog) as well as any specific pulse shaping needs.A fiber-coupled acousto-optic modulator (FCAOM) can directly control the temporal characteristics of the active output from a fiber laser, offering a wider variety of pulse shapes. As a byproduct of the acousto-optic effect, light passing through the first order diffraction mode of a fiber-coupled modulator also experiences a frequency shift and beam deflection. This allows the Fiber-Q® products to be used for more than just modulation, resulting in applications outside the laser such as optical heterodyne interferometry. G&H’s fiber optic acousto-optic modulators are designed for low insertion loss, high extinction ratio and excellent return loss. Typical optical performance for the Fiber-Q® series includes: Insertion loss: as low as 2 dB, depending on model Extinction ratio: 50 dB Return loss: 40 dB Polarization extinction ratio: 20 dB (for polarization-maintaining models) G&H has developed the first devices for visible wavelengths from 397 nm to 780 nm to meet the needs of sensing and quantum technology applications. The fast switch rate Fiber-Q® devices enable efficient, high speed optical pulse picking at infrared wavelengths for all-fiber laser systems. Most devices are also offered in 3-port configurations.Applications: Industrial Lasers; Sensing; Scientific Research; Telecommunication; Quantum Technology; Optical Heterodyne Interferometry; Microscopy; Flow Cytometry Series Product Code Wavelength Pigtail Type Rise / Fall Time Operating Frequency Downloads Fiber-Q 1060 nm 150 MHz Non-Hermetic Fiber-Coupled AOM S-M150-0.4C2G-3-F2S 1060 nm SM 30 ns 150 MHz Datasheet Datasheet Datasheet Driver Fiber-Q 1060 nm 200 MHz Non-Hermetic Fiber-Coupled AOM S-M200-0.1C2G-3-F2P 1060 nm SM 10 ns 200 MHz Datasheet  Driver   Driver  Driver Fiber-Q 450 nm 200 MHz S-M200-0.4C2A-3-F2P, S-M200-0.4C2A-3-F2S 450 nm PM, SM 25 ns 200 MHz Datasheet  Driver   Driver  Driver  Fiber-Q 532 nm 200 MHz S-M200-0.4C2C-3-F2P, S-M200-0.4C2C-3-F2S 532 nm PM, SM 25 ns 200 MHz Datasheet  Driver  Driver     Fiber-Q 633 nm 200 MHz Fiber Coupled AOM S-M200-0.4C2E-3-F2P, S-M200-0.4C2E-3-F2S 633 nm PM, SM 25 ns 200 MHz Datasheet  Driver   Driver    Fiber-Q PM 1550 nm, 40 MHz (AMTIR) T-M040-0.5C8J-3-F2P 1550 nm PM 100 ns 40 MHz Datasheet  Driver  Driver  Driver  Fiber-Q 1550 nm 40 MHz (AMTIR) T-M040-0.5C8J-3-F2S 1550 nm SM 100 ns 40 MHz Datasheet Datasheet Datasheet Driver  Fiber-Q PM 2000 nm 80 MHz Hermetic Fiber Coupled AOM T-M080-0.3C2Z-3-F2P 2000 nm PM 100 ns 80 MHz Datasheet  Driver      Fiber-Q 2000 nm 80 MHz Hermetic Fiber Coupled AOM T-M080-0.3C2Z-3-F2S 2000 nm SM 100 ns 80 MHz Datasheet  Driver     Fiber-Q PM 1550nm 80MHz Hermetic Fiber-Coupled AOM T-M080-0.4C2J-3-F2P 1550 nm PM 35 ns 80 MHz Datasheet  Driver     Fiber-Q 1550 nm 80 MHz Hermetic Fiber Coupled AOM T-M080-0.4C2J-3-F2S 1550 nm SM 35 ns 80 MHz Datasheet  Driver     PM Fiber-Q Polarization Maintaining 1550 nm Hermetic Fiber Coupled Acousto-Optic Modulator, 80 MHz (Low Power Consumption) T-M080-0.5C8J-3-F2P 1550 nm PM 100 ns 80 MHz Datasheet  Driver      Fiber-Q 1550 nm Hermetic Fiber Coupled Acousto-Optic Modulator, 80 MHz (Low Power Consumption) T-M080-0.5C8J-3-F2S 1550 nm PM 100 ns 80 MHz Datasheet  Driver      Fiber-Q PM 1550 nm 110 MHz Hermetic Fiber Coupled AOM T-M110-0.2C2J-3-F2P 1550 nm PM 25 ns 110 MHz Datasheet Driver       Fiber-Q 1550 nm 110 MHz Hermetic Fiber Coupled AOM T-M110-0.2C2J-3-F2S 1550 nm SM 25 ns 110 MHz Datasheet  Driver      Fiber-Q PM 1060 nm 150 MHz Hermetic Fiber Coupled AOM T-M150-0.4C2G-3-F2P 1060 nm PM 30 ns 150 MHz Datasheet  Driver     Fiber-Q 1060 nm 150 MHz Hermetic Fiber-Coupled AOM T-M150-0.4C2G-3-F2S 1060 nm SM 30 ns 150 MHz Datasheet  Driver     Fiber-Q, 780 nm, 150 MHz Fiber Coupled AOM T-M150-0.5C2W-3-F2P, T-M150-0.5C2W-3-F2S 780 nm PM, SM 50 ns 150 MHz Datasheet  Driver     Fiber-Q PM 1060 nm 200 MHz Hermetic Fiber Coupled AOM T-M200-0.1C2G-3-F2P 1030 - 1090 nm PM 10 ns 200 MHz Datasheet  Driver Driver     Fiber-Q 1060 nm 200 MHz Fiber Coupled AOM T-M200-0.1C2G-3-F2S 1060 nm SM 10 ns 200 MHz Datasheet  Driver  Driver  Driver  Fiber-Q PM 1550 nm 200 MHz Hermetic Fiber-Coupled AOM T-M200-0.1C2J-3-F2P 1550 nm PM 10 ns 200 MHz Datasheet  Driver Driver     Fiber-Q 1550 nm 200 MHz Hermetic Fiber-Coupled AOM T-M200-0.1C2J-3-F2S 1550 nm SM 10 ns 200 MHz Datasheet  Driver Driver     Fiber-Q 2000 nm (2µm) 250 MHz Fiber Coupled AOM T-M250-0.3C16Z-3-F2P 2000 nm PM 20 ns 250 MHz Datasheet  Driver      Fiber-Q 1060 nm 300 MHz Hermetic Fiber Coupled AOM T-M300-0.1C2G-3-F2P, T-M300-0.1C2G-3-F2S 1060 nm PM, SM 6 ns 300 MHz Datasheet  Driver      Fiber-Q 1550 nm Fiber Coupled Acousto-Optic Modulator T-M300-0.1C16J-3-F2P 1550 nm PM 6 ns 300 MHz Datasheet Driver      

Chip Style; Input Signal Current 0.8-80 µA; Typ. Locking Accuracy 1°; Bias Voltage -10-10 V; Pilot Tone Frequency 9.8 kHz; Dimensions 45.7x20.3x12.7 mm OZ Optics’ MBC-CHIP chip-size modulator bias controller is a single-function, chip-size, OEM version of the MBC family of modulator bias controllers. It is designed especially for digital system applications. The small size of the board makes it easy to be integrated into the system. This chip-size MBC is designed to lock the working point of the modulator at positive slope quadrature (quad+), negative slope quadrature (quad-), null or peak points of its characteristic curve respectively. The locking mode and slope has to be specified before ordering. The Chip size MBC is designed to use the built-in PD of the modulator but the user may also use an external PD by soldering it to the MBC-Chip. Key Features: Single-function Unit With Q+/Q-, Null/Peak Options Low Profile: 45.7 x 20.3 x 12.7 mm Access for External Photodetector Input Signal Current: 0.8 µA to 80 µA Locking Accuracy: 1° Typ., 3° Max. DC Bias Voltage: -10 V to +10 V Pilot Tone Frequency: 9.8 kHz Pilot Tone Amplitude Range: 0 mV to 300 mV VC DC Voltage: -10 V to +10 V Applications: Modulator Bias Control in Digital Systems; Locking the Modulator’s Working Point at Positive Slope Quadrature (quad+), Negative Slope Quadrature (quad-), Null or Peak Points of its Characteristic Curve