Gershwin & Guaraldi EPG Polarization Entangled Photon Sources

1527-1610 nm; Output Power 13-27 dBm; Termination Receptacle Style, FC/PC, FC/APC, ST, SC, SCA, LC, MU; C, C+L Band; Spectrum Flatness 1.0-2.0 dB OZ Optics’ ASE (Amplified Spontaneous Emission) broadband low coherence light sources are ideal instruments for optical component spectral measurement and system compliance testing in manufacturing and R&D environments. The new generation of ASE sources have no high-frequency ripples, which makes them very useful for sensor interrogation applications. ASE broadband light sources are available to cover the C-band, L-band, or both the C & L bands together. These are available with either a flattened spectral output for demanding applications, or a non-flattened response for less demanding or cost-sensitive applications. A range of output powers are available. The output light is accessed via a female fiber connector receptacle on the front panel. A variety of standard connector types are available. Custom connectors can also be accommodated. ASE broadband light sources are available in bench-top, rackmount or OEM module form factors. The basic version of the source features a built-in microprocessor for applications that require output power adjustment. RS-232 and USB interfaces are included, with the addition of a GPIB interface offered as an option. Key Features: High Output Power: 13 dBm (20 mW) to 27 dBm (500 mW) Wide Spectral Bandwidth Operating Wavelength Range (Typ.): 1527 to 1610 nm (Unflattened), 1531 to 1607 nm (Flattened) Spectrum Flatness (Typ.): 1.0 to 2.0 dB Covers C Band, L Band, or Both High Power Stability: 0.02 dB (1 h) Un-polarized Output Light Minimum Output Isolation: 45 dB Minimum Return Loss: 55 dB Termination: Receptacle Style, FC/PC, FC/APC, ST, SC, SCA, LC, MU Interfaces: RS232 and USB, GPIB Optional High Performance-to-cost Ratio Optional Built-in Attenuator and Optical Power Monitor Custom Design Flexibility Operating Temperature Range: 0 to +40°C Applications: Optical Component Testing; Telecom System Compliance Testing; EDFA Gain Spectrum Measurements; Optical Fiber Sensors and Sensing Systems; WDM by Spectral Slicing; Biomedical Imaging; Coherent Communication Systems

1529-1562 nm; Output Power 13 dBm; Termination Receptacle Style, FC/PC, FC/APC, ST, SC, SCA, LC, MU, None; C Band; Spectrum Flatness <±0.5 dB OZ Optics’ ASE-11 (Amplified Spontaneous Emission) broadband low-coherence light source is an ideal instrument for optical component spectral measurement and system compliance testing in manufacturing and R&D environments. The ASE-11 source comes with a flat spectrum with peak-to-peak ripples less than 1 dB over 1529 nm to 1562 nm, which makes it very useful for optical signal-to-noise ratio and sensor interrogation applications. The unit comes with a nominal 13 dBm output power and it is provided with an internal or external monitor port. The output light is accessed via a pigtailed 9/125 μm single mode fiber. A variety of standard connector types are available. Custom connectors can also be accommodated. The unit is packaged in a low-profile OEM box with built-in driver. Key Features: High Output Power: 13 dBm Flat Spectral Bandwidth With Ripple <±0.5 dB Operating Wavelength Range: 1529 to 1562 nm Covers C-band Spectrum Flatness: <±0.5 dB High Power Stability: 0.02 dB (1 h) Un-polarized Output Light High Performance-to-cost Ratio Optional Built-in Attenuator Pump TEC and Current Driver Included Output Isolation: 45 dB Return Loss: 55 dB Termination: Receptacle Style, FC/PC, FC/APC, ST, SC, SCA, LC, MU, None Internal or External Monitor Port Operating Temperature Range: 0 to +40°C Dimensions: 200 x 200 x 50 mm Applications: OSNR Measurement; Optical Components Testing; Telecom System Compliance Testing; Optical Fiber Sensors and Sensing Systems; WDM; Biomedical Imaging; Coherent Communication Systems

1528-1610 nm; Output Power ≥7-≥13 dBm; Termination SMF-28e Fiber Pigtail; C, C+L Band; Spectrum Flatness ≤2 dB; Output Connector: FC/PC, FC/UPC, FC/APC LightComm Technology’s ASE-C/CL ASE broadband light sources are available in desktop or miniature size module form factors. These light sources provide broadband spectra covering C band as well as C+L band with high stability and high output power. Key Features: Broadband Spectrum Output, Covering C band or C+L Band Operating Wavelength: 1528 to 1610 nm High Output Power: ≥7 to ≥13 dBm Spectrum Flatness: ≤2 dB (With GFF) Spectrum Density: ≥16 to ≥20 dBm/nm Spectrum Density Stability: ≤±0.5 dBm/nm (15 min) High Output Power Stability: ≤±0.02 dB (15 min), ≤±0.05 dB (8 h) Fiber Pigtail: Single Mode SMF-28e Output Connector: FC/PC, FC/UPC, FC/APC Operating Temperature: 0 to +40°C Power Supply: 230/110 VAC, 20 W (Desktop) Dimensions: 260x240x113 mm (Desktop), 90x70x16 mm (Mini Module) Applications: Fiber Grating; DWDM Filters; CWDM Filters; AWG Test and Manufacturing; Passive Fiber Optical Components Test; Optical Fiber Gyro and Fiber Sensors

Deuterium-Halogen; 200-2500 nm; Stability <1 mAU; Drift <0.25%/h; Optical Power 0.2, 7 µW; Power Supply 12 VDC, 450 mA Get the best of two worlds with Avantes’ AvaLight-DHc full range light source. It has both a deuterium light source and a halogen light source, providing you with adequate light between 200 and 2500 nm for nearly all absorbance chemistry applications. Deuterium emits light between 200 and 550 nm, whereas halogen emits light of up to 2500 nm. Coupling to the rest of your spectroscopy system is easy with the SMA connector. This light source is recommended in settings with large fiber cables or direct-attachment to a cuvette holder such as the CUV-DA, due to its relatively low output energy. The integrated TTL-shutter makes saving a dark measurement very simple in combination with AvaSoft (extra IC-DB26-2 needed). Optionally, the AvaLight-DHc is available in a rack-mountable version, to be used in the 19” rack or the 9.5” desktop system. A direct-attach cuvette holder CUV-DA is available for fluorescence or absorbance measurements. Key Features: Combined Deuterium-Halogen Light Source Integrated TTL-Shutter Wavelength Range: 200 to 2500 nm Stability: <1 mAU Warm-up Time: 1, 8 min Drift: <0.25%/h Optical Power (in 600 µm Fiber): 0.2, 7 µW Lamp Lifetime: 1000, 2000 h Temperature Range: 5 to 35 °C Power Supply: 12 VDC, 450 mA Dimensions: 175 x 110 x 44 mm Applications: Nearly All Absorbance Chemistry Applications

1526-1563 nm; Output Power ≤17 dBm; Termination SM Fiber Pigtail, FC/APC Connector; Spectrum Flatness 1 dB Typ.; Full Temperature Power Stability ≤5% Beogold Technology's BG-ASE low-coherence broadband ASE (amplified spontaneous emission) light source is designed for industrial manufacturing and laboratory R&D applications. BG-ASE’s unique ATC and APC circuit control technology ensures very stable output power. The flattened ASE light source features high output power, low polarization and wide spectral width. The device is small and of high stability and reliability. With 5 VDC power supply and upper computer software, the user can read and set the module parameters via R232 communication serial port in real time. Module and benchtop structures are available for different needs. Key Features: Operating Wavelength Range: 1526 nm to 1563 nm Excellent Spectrum Flatness: 1 dB Typical (@ Room Temperature) Small Output Ripple High Adjustable Output Power: ≤17 dBm High Output Power Stability: ≤0.03 dB (Short Term), ≤0.2 dB (Long Term) Full Temperature Power Stability: ≤5% High Reliability Module and Benchtop Structures Available Customized Output Power and Configuration Operating Temperature Range: -45 °C to +85 °C Fiber Connector: SM Fiber Pigtail (Module), FC/APC or Customized (Benchtop) Communication Interface: RS232 (Module), RS232 Console or RJ45 (Benchtop) Power Supply: 5 VDC (Module), 220 VAC (Benchtop) Dimensions: 90 x 70 x 15 mm (Module), 260.6 x 162.8 x 76 mm (Benchtop) Applications: Fiber Optic Sensing; Component Test and Measurement; Medical and Biological Imaging; Fiber Optic Telecommunication

Signal/Idler Degeneracy Wavelength 1550 ±0.7² nm; Photon Pairs Bandwith FWHM 3 nm @ -3 dB Spectral Brightness; Noise Suppression >75 dB; Fidelity >98% OZ Optics' advanced entangled photon sources harness the high optical confinement within a periodically poled nonlinear waveguide (PPNW) to achieve exceptional efficiency and produce plentiful photon pairs. Utilizing spontaneous parametric down-conversion (SPDC) within a periodically poled lithium niobate (PPLN) type-2 waveguide, situated within a fiber-based Sagnac loop, photons are generated. The thermal stabilization of the PPNW ensures maintenance of the ideal phase matching condition. Following the creation of photon pairs, pump photons and associated fluorescence noise are efficiently filtered out from the remaining pairs using a built-in set of optical filters. This remarkable stability is attained through the self-compensation effect of an all-in-fiber Sagnac interferometer, complemented by a single-frequency external cavity laser operating at 775 nm with an ultra-narrow linewidth. Consequently, bright, high-performance, and low-noise entangled photon sources operating at room temperature are realized. The resulting polarization-entangled photon pairs are generated within a narrow spectral bandwidth of just a few nanometers in the C Band, with a center wavelength of 1550 nm. Key features: Highest counts/coincidence rate available in the market High Heralding efficiency and excellent fidelity Turn-key, highly stable, room temperature operation Rugged, alignment free, proprietary design Built-in noise-suppression filters Built-in stable pump laser with variable attenuator Customizable Applications: Quantum key distribution, quantum computing and information processing, quantum LIDAR, subsystem integrable for quantum communication  

Signal/Idler Degeneracy Wavelength 1550 ±0.6² nm; Photon Pairs Bandwith FWHM 80 nm @ -3 dB Spectral Brightness; Noise Suppression >75 dB; Fidelity >98% OZ Optics' advanced entangled photon sources leverage the high optical confinement within a periodically poled nonlinear waveguide (PPNW) to achieve remarkable efficiency and a rich abundance of photon pairs. These photons are produced through spontaneous parametric down-conversion (SPDC) within a periodically poled lithium niobate (PPLN) type-2 waveguide, nestled within a fiber-based Sagnac loop. Ensuring optimal phase matching, the PPNW is thermally stabilized. Upon photon pair creation, any residual pump photons and associated fluorescence noise are meticulously filtered out by an integrated set of optical filters. Exceptional stability is realized through the self-compensation effect of an all-in-fiber Sagnac interferometer, complemented by a single-frequency external cavity laser operating at 775 nm with an ultra-narrow linewidth. Consequently, these entangled photon sources deliver bright, high-performance outputs with minimal noise, operating comfortably at room temperature. The resulting polarization-entangled photon pairs exhibit a narrow spectral bandwidth of just a few nanometers in the C Band, centered at 1550 nm. Key features: Highest counts/coincidence rate available in the market High Heralding efficiency and excellent fidelity Turn-key, highly stable, room temperature operation Rugged, alignment free, proprietary design Built-in noise-suppression filters Built-in stable pump laser with variable attenuator Customizable Applications: Quantum key distribution, quantum computing and information processing, quantum LIDAR, subsystem integrable for quantum communication  

Signal/Idler Degeneracy Wavelenght 1550 or 810 nm; Photon Pairs Bandwidth FWHM ~80 or ~3 nm; Noise Suppression 75 dB; Max. Output Power of Pump Laser 12 mW, variable. The correlated photon pair sources generate photon pairs entangled in time or energy through spontaneous parametric down conversion (SPDC). Once the photon pairs are created, the pump photons are filtered out from the remaining pairs using an integrated set of optical filters. Equipped with a stabilized pump laser and internal variable optical attenuator for pump power control, OZ Optics' correlated pair sources ensure stable operation. The SPDC medium is thermally stabilized to maintain optimal phase matching conditions, thereby maximizing photon conversion efficiency. The photon pairs are separated using either a wavelength splitter (WDM) or polarizing beam splitter (PBS), depending on the spectral bandwidth of the unit ordered. Key features: Rugged, alignment free and all-in-fiber design High heralding efficiency Turn-key, highly-stable and room-temperature operation Built-in pump laser and noise-suppression filters Selectable wavelength, counts rate and bandwidth Customizable Applications: Fundamental quantum information science, quantum key distribution, quantum computing, quantum metrology

SLED; 402-1680 nm; Optical Bandwidth 3-350 nm; Coherence Length 2.5-30 µm; Optical Power 0.5-40 mW With the EBS series, EXALOS provides high-performance fiber-coupled light sources based on superluminescent light emitting diodes (SLEDs). These highly customizable benchtop instruments are available in various form factors for research, development, production and testing environments. EBS SLED systems can be configured with up to eight SLEDs for ultra-broadband light sources. They can either have individual optical outputs for each SLED or can be configured to have one common output where the spectra of the individual SLEDs are combined. EBS light sources are available over a wide spectral range from near-UV (390 nm) to near-IR (1700 nm). In the long-wavelength range, EXALOS can offer the EBS300058-02, an ultra-broadband 350-nm light source from 1270 to 1620 nm with more than 40 mW of optical output power. In the short-wavelength range EXALOS can offer the EBS300080-02, an ultra-broadband 160-nm light source from 750 to 920 nm, featuring a coherence length in air of less than 2.5 µm. The EBS series’ optical output can be realized either with a single mode (SM) fiber or with a polarization maintaining (PM) fiber, depending on the type of SLED module that is chosen. The EBS30 and EBS40 series offer remote control through electrical analog and digital control signals and modulation capabilities up to 50 Hz. Optionally, a low degree of polarization (DOP) can be achieved using fiber depolarizers. Furthermore, spectral shaping through custom optical bandpass filters can be realized. Please contact the AMS Technologies light source experts to discuss your customized SLED broadband light source solution. Key Features: Turn-key System Multiple Spectral Ranges, Center Wavelength: 405 to 1570 nm Ultra-large Optical Bandwidth: 3 to 350 nm (3 dB), 6 to 400 nm (10 dB) Very Short Coherence Length: 2.5 to 30 µm (HWHM) Remote Power Control Through an Analog Input Voltage Ultra-low Noise (RIN) Ultra-stable High Optical Output Power: 0.5 to 40 mW Modulation up to 50 Hz Spectral Shaping Options Low Degree of Polarization – Optional Applications: Ultra-High Resolution Optical Coherence Tomography; Bio-medical Imaging; Multi-Channel Fiber Bragg Grating Interrogation; Passive Component Testing; Spectroscopy; Fiber Sensor Interrogation

1530-1580 nm; Wavelength Accuracy ±2 nm; Biphoton Bandwidth 60->120 nm; Pair-generation Rate 1-4x106 Pairs/s; Coincidence-to-accidental Ratio 100-1000; Signal/Idler Sum Frequency Bandwidth 0.1-0.4 nm OZ Optics’ EPS-1000 fiber-based device is a compact, robust, and alignment-free source of broadband polarization-entangled photon pairs. Based on periodically-poled silica fiber (PPSF) technology, it features turn-key, room-temperature operation, and needs little maintenance. The all-fiber design makes it environmentally stable for challenging applications such as space-based instruments. It generates high-quality polarization-entangled photon pairs at telecom wavelengths with more than 80 nm of bandwidth. This unit comes with a built-in optical switch to allow the user to direct the light either to a common output port or to a built-in wavelength division multiplexor to have the signal and idler photons of the entangled photon pairs separated to two output ports. This ideal entanglement source has myriad applications in quantum information processing, quantum sensing, and WDM-based quantum key distribution networks. Key Features: High-quality Polarization and Frequency Entanglement Broad Bandwidth Covering C- and L-Bands High Fidelity and Excellent Stability Turn-key and Room-temperature Operation Low Power Consumption Compact Design and Lightweight Platform Rugged, Alignment-free, All Fiber Design Built-in Optical Switch and WDM Signal/Idler Degeneracy Wavelength: 1530 nm to 1580 nm Signal/Idler Degeneracy Wavelength Accuracy: ±2 nm Biphoton Bandwidth (3 dB): 60 nm to >120 nm Signal/Idler Sum Frequency Bandwidth (3 dB): 0.1 nm to 0.4 nm Pair-generation Rate: 1x106 to 4x106 Pairs/s Coincidence-to-accidental Ratio: 100 to 1000 Two-photon Interference Visibility: 97% to 99.5% Applications: Quantum Imaging; Quantum Metrology; Quantum Key Distribution networks; Quantum Computing and Information Processing

Signal/Idler Degeneracy Wavelenght 810 nm; Photon Pairs Bandwidth FWHM ~3 nm; Pair-generation rate >1x10⁵ Pairs/Second; Max. Output Power of Pump Laser 12 mW, variable. OZ Optics provides entangled photon sources featuring a pair of periodically poled crystals housed within a Mach-Zehnder interferometer. These sources utilize type-2 spontaneous parametric down-conversion (SPDC) to generate polarization-entangled photon pairs. Multiple polarization displacers (PDs) are strategically employed to divide the pairs into two output ports, conveniently located on the front panel as depicted in the photo. Photon pairs are centered at 810 nm with a bandwidth of just a few nanometers. Each source is equipped with a wavelength-stabilized pump laser, variable optical attenuator, and temperature controller to finely adjust phase matching parameters, optimizing efficiency. Integration of a rotatable half-wave plate (HWP) enables control over the number of photon pairs generated in each crystal. Consequently, users can establish polarization reference bases while easily toggling between polarization and energy domains. This feature is anticipated to greatly support the quantum optics R&D community. Key features: Turn-key and room-temperature operation Built-in pump laser and noise-suppression filters Controllable accidental photons rate Applications: Quantum Information Science, quantum metrology, quantum key distribution, quantum computing and information processing

1525-1608 nm; Output Power 14-18 dBm; Minimum Power Density -12 dBm/nm; Output Isolation >30, >40 dB; Output Connector FC/PC, FC/APC Fibotec Fiberoptics’ Fibolux BBS series of fiber optic broadband light sources makes use of the Amplified Spontaneous Emission (ASE) within optically pumped rare earth doped fibers. The spectral width of these light sources ranges by design from a few nm to the entire emission wavelength range of the dopand (e.g. Erbium-Ions). The optical power density of fiber optic ASE sources is typically higher than that of broadband fiber-coupled semiconductor-based devices at an even lower noise level (RIN). This characteristic and the strong incoherence resulting from the absence of residual resonator effects make ASE-sources an ideal instrument in test and measurement applications. C- and L-band sources are utilized for spectral characterization of optical components including the DWDM-market. Applications are also found in various White Light Interferometer based instruments. Key Features: Extremely High Power Stability Wavelength Shaping Wavelength Range: 1525 to 1565 nm, 1528 to 1608 nm Additional 1060 nm Versions Output Power: 14 to 18 dBm Minimum Power Density: -12 dBm/nm Power Stability: ±1.5, ±2.5 mdBm (15 min) Output Isolation: >30, >40 dB Output Connector: FC/PC, FC/APC Operating Temperature: 0 to +40°C Power Supply: 5 VDC, 3 A (Module), 100-240 VAC, 50 Hz, 40 W (Instrument) Dimensions: 145 x 100 x 17 mm (Module), 210 x 290 x 95 mm (Instrument) Applications: Test & Measurement; Spectral Characterization of Optical Components; DWDM; White Light Interferometer Based Instruments