TETRA DPSS Lasers

Fused Silica, CaF2; 415-1700 nm, Customer Specified; Finesse 56-~100, Customer Specified; FSR 15-60 GHz, 0.5-2/cm, Customer Specified; Thickness 1.68-6.74 mm, Customer Specified; AR and HR Coating; 22.0x24.0, Customer Specified; Clear Aperture 18x18 mm, Customer Specified LightMachinery’s OP-6721/OP-7553 series of VIPA (Virtually Imaged Phase Array) etalons are manufactured from Fused Silica (OP-6721) or Calcium Fluoride (OP-7553), allowing operation further into the infrared, IR) using the company’s patented fluid jet polishing (FJP) technology – allowing the adjustment of the etalon’s shape and flatness to within a few nanometers. Catalog series OP-6721 VIPA etalons are available with dimensions of 22.0 x 24.0 mm and 18 x 18 mm aperture. Free spectral range (FSR) values are 15 GHz (0.5/cm), 30 GHz (1/cm) and 60 GHz (2/cm), each available with nine different finesse values from 56 to 100, resulting in nine different wavelength ranges from 415 to 1700 nm. Wavelength range, thickness, finesse, FSR and other design details of OP-6721 and OP-7553 series VIPAs are also available based on customer requirements. For the OP-6271 series, a dedicated protective aluminium mount is available that enables mounting the VIPA in a standard 50.8 mm (2”) diameter optic holder – its price includes cementing of the VIPA to the mount at the supplier. A VIPA (Virtually Imaged Phase Array) is a special type of Fabry-Perot etalon with a built-in transmission window so the beam can sneak in past the first reflector and effectively commence the multiple reflections and constructive and destructive interference from inside the etalon. By changing the first reflector to a full 100% high reflector, the beam can only exit in transmission, this effectively creates an etalon with ~100% transmission. VIPAs are made with three distinct coatings, carefully selected to match the wavelength range of interest: One surface of a VIPA has an anti-reflection coated section adjacent to a high reflector. The opposite surface is coated with a partially transmitting mirror. Light is introduced into the VIPA at a small angle on the AR coated area. The VIPA is tilted so that the portion reflected from the partial reflector is fully incident on the high reflectance zone of the input surface. A single input beam is converted to a series of parallel output beams of gradually decreasing intensity. These beams will constructively interfere at an angle that depends on the wavelength. Placing a lens between the VIPA and an array detector (CCD or similar) allows recording of a spectrum of the input light. Each subsequent beam has a precise increase in phase and fixed lateral displacement, hence “phase array”. LightMachinery is the world leader in high-accuracy VIPA fabrication, and VIPAs are at the core of many of LightMachinery’s spectrometers. Several parameters define the performance of a VIPA. The first is its optical thickness (OPD) – the free spectral range (FSR) is approximately c/OPD. Analogous to a regular etalon, the angular dispersion of the VIPA output will repeat every time the input frequency (or wavelength) increases by 1 FSR. The second important parameter is the reflectance of the output mirror. In principle, a higher reflectance mirror will increase the resolving power of the VIPA. Light Machinery has optimized the partial reflectivity for each wavelength range to maximize finesse; finesse greater than 100 has been achieved for VIS/NIR applications. In other words, it will be possible to distinguish wavelengths separated by 1/100th of the FSR. The third important parameter is the internal angle of the light traveling through the VIPA. Smaller angles increase the angular dispersion, and a narrower transition between the antireflection coating and the high reflector enables a smaller angle. LightMachinery’s VIPAs have a transition width of only 2 to 3 µm, which enables operation of the VIPA at a very small angle. This reduction in angle improves resolution and contrast compared to what was previously possible. Sometimes you need something special – if you are looking for a customized VIPA etalon that exactly meets your specific requirements (e.g. different substrate materials like Silicon, etc.), please get in touch with the AMS Technologies etalon experts. Our supplier LightMachinery is extremely experienced with specifying, designing and manufacturing custom etalons using the company’s patented fluid jet polishing (FJP) technology. We are looking forward to discussing your customized etalon solution! Fluid jet polishing (FJP) systems use a fine stream of slurry to accurately remove nanometers of material from an optical surface. Many years of refining this computer controlled polishing technology have enabled LightMachinery to use FJP for the adjustment of the shape and flatness of optical components such as etalon mirrors to within a few nanometers as well as the production of very thin components such as wafers and thin etalons that are impossible to accurately polish using conventional technology. Key Features: VIPA (Virtually Imaged Phase Array) Etalons Etalon Material: Fused Silica (OP-6721) or Calcium Fluoride (OP-7553) Anti-reflective (AR) and High-reflection (HR) Coating Wavelength Range: 415 to 1700 nm or Customer Specified Finesse: 56 to ~100 or Customer Specified Free Spectral Range, FSR: 15, 30, 60 GHz (2/cm, 1/cm, 0.5/cm) or Customer Specified Dimensions: 22.0 x 24.0 mm Including a 3 mm Input Window or Customer Specified Thickness: 1.68 to 8.74 mm or Customer Specified Clear Aperture: 18 x 18 mm or 90% of Outside Dimensions Matched Surface Figure: λ/200 rms Surface Quality: 10/5 or Better Substrate Wedge: <0.05 arcsec Applications: Spectroscopy; Interferometers; Wavelength Measurement; Lasers; Fine-structural Investigation of Spectral Lines

1700-1750 nm; Output Energy ≤50 µJ; Repetition Rate ≤10 kHz; Pulse Width 2-5 ns; Pump Laser and OPO in Single Rugged Housing Our 170P0-1-50-S MID-IR tunable OPO (optical parametric oscillator) source combines pump laser and OPO in a single, rugged housing and generates laser pulses in the mid-infrared (MID-IR) range around 1700 nm – the applications for such wavelengths are mainly in the field of photoacoustic imaging, in addition to gas chromatography and other analysis tasks. The OPO’s wavelength can be tuned in an extended range from 1700 nm to 1750 nm. Other wavelength ranges (e.g. 1500 nm to 2000 nm) are available on demand. Using an electro-optical Q-switch, very short pulses with typical pulse widths of 2 ns to 5 ns are generated. If different wavelengths, repetition rates, pulse energies or pulse widths is what you are looking for, the laser experts at Elforlight (an AMS Company) are happy to specify, design and manufacture your customized OPO solution. Get in touch with us now to discuss your project’s requirements! Key Features: Tunable Wavelength Range: 1700 nm to 1750 nm (1500 nm to 2000 nm on request) Ideal for Cardiovascular Photoacoustic Imaging Pump Laser and OPO in Single Rugged Housing Operation Mode: Pulsed Pulse Width: 2 ns to 5 ns Pulse Repetition Rate: Up to 10 kHz Pulse Energy: 50 µJ @1 kHz, 30 µJ @5 kHz Beam Quality: Close to TEM00, M2 < 1.3. (Capable of Launch into Multimode Optical Fiber) Beam Profile: Circular Triggering: External Laser Pulse Trigger Option (Input Trigger Signal 5 V) Control: RS232 Interface With: Switch Laser On/Off, Set Laser Energy, Enable/Disable Emission Power Supply: 110 VAC to 240 VAC, 50/60 Hz, ~200 W Safety Features: Redundant Interlock, Warning Outputs Applications: Biomedical Photoacoustic Imaging; Gas Chromatography; Other

Actively Q-switched DPSS laser; pulse width <2 ns; repetition rate up to 50 kHz; very low jitter; 1064 nm and harmonics down to 355 nm Utilising advanced technology, SPOT actively Q-switched DPSS lasers provide a short pulse output (pulse widths <2 ns) at repetition rates from single shot up to >50 kHz with very low jitter. The series features fundamental YAG wavelength at 1064 nm and harmonics down to 355 nm. The compact design enables the lasers to be easily integrated into scientific instrumentation. Applications include laser induced fluorescence, time resolved fluorescence, micromachining, biotechnology, plasma generation, remote sensing, photo acoustic imaging, MALDI mass spectrometry and MALDI imaging. SPOT laser systems consist of a laser head with a separate power supply unit. Both units are connected with a cable which is hard wired into the laser head while having a 37 way ‘D’ connector for connection to the power supply unit. The SPOT DPSS laser series feature simple, user-friendly control with the minimum of user defined parameters. The systems are designed as fixed power level devices under automatic operation, or power can be varied by adjusting the pump diode current via RS232 interface. Specifications Wavelength: 1064 nm; 532 nm; 355 nm Pulse Energy: up to 50 µJ Pulse width: <2 ns Low jitter: <±1 ns Repetition rate: up to 50 kHz Spatial Mode: TEM00 M2 < 1.2 Features Low pulse width and jitter RS232 controllable User interface (interlock, on/off keyswitch etc.) Manual safety shutter Active current limit Auto power-up sequence: warmup, current mode Laser diode protection circuitry Monitoring the following parameters:      - Diode current limit, diode current setpoint, actual diode current      - Diode & chipset temperature setpoint, actual temperature Diode-on-time LCD hour counter (internal) Overtemperature Sensors for heatsink and laser-head Applications: Photoacoustic Microscopy; MALDI Mass Spectrometry (Matrix Assisted Laser Desorption Ionisation); Fluorescence Lifetime Imaging (FLIM); Dye Laser Pumping