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Laser Stabilization Systems
Conoptics Laser Stabilization System (LASS-II) is designed to lower the noise intensity in laser beams. The LASS-II significantly enhances the signal to noise ratio of a laser over a broad bandwidth. Customized options are also available upon request.
Conoptics Laser Stabilization System (LASS-II) is designed as an electro-optic feedback loop capable of reducing the amplitude variations commonly associated with lasers. The LASS-II system enhances the signal to noise ratio of the laser over a broad bandwidth. Both an internal and external reference input is provided, allowing analog programming of the laser throughput.
The LASS-II is particularly convenient for use in recording systems where laser power must be varied as a function of position on the recording medium (i.e. video disc, flat bed recorders, etc.). The system is composed of feedback electronics, power supply and electro-optic modulator with integrated beam-splitter and photodiode amplifier.
Performance Characteristics
| Wavelength | 514nm, laser power 50mw, lo= .5 lmax |
| Laser Power | 50mw, low = .5lmax |
| Beam Diameter | 1.4mm (1/e 2) TEMOO |
| Noise Reduction (Int. Ref Mode) | 1/1@500kHz, 5/1@100kHz, 18/1@50kHz, 100/1@10hHz, 200/1@1kHz, 250/1@200hz |
| Noise Floor | 458nm, -100db Relative to F.S. |
| D.C. Stability – Short Term | .1% Relative to Full Scale (@.5Imax, T=0 -> 1hr. |
| External Input Impedance | 1k nominal |
| External Input Voltage | 0 -> +1 V Max |
| Electrical Input Power | -20W (100-230 Vac) |
| The amount of light for calibrationOutput of beam-splitter to diode | @633nm 300uw@514nm 450uw@488nm 540uw@458nm 820uw*Two different types of beam splitters are available to optimize efficiency and finesse |
| Static Transmission | 85% (excluding beam-splitter) |
| Useable Aperture | 2.5mm square * |
| Optical Bandwidth | 400-900nm |
| Max. Throughput Power | 3.5w/mm2 TEMOO |
System Options
| Wavelength | 514nm, laser power 50mw, lo= .5 lmax |
| Laser Power | 50mw, low = .5lmax |
| Beam Diameter | 1.4mm (1/e 2) TEMOO |
| Noise Reduction (Int. Ref Mode) | 1/1@500kHz, 5/1@100kHz, 18/1@50kHz, 100/1@10hHz, 200/1@1kHz, 250/1@200hz |
| Noise Floor | 458nm, -100db Relative to F.S. |
| D.C. Stability – Short Term | .1% Relative to Full Scale (@.5Imax, T=0 -> 1hr. |
| External Input Impedance | 1k nominal |
| External Input Voltage | 0 -> +1 V Max |
| Electrical Input Power | -20W (100-230 Vac) |
| The amount of light for calibrationOutput of beam-splitter to diode | @633nm 300uw@514nm 450uw@488nm 540uw@458nm 820uw*Two different types of beam splitters are available to optimize efficiency and finesse |
| Static Transmission | 85% (excluding beam-splitter) |
| Useable Aperture | 2.5mm square * |
| Optical Bandwidth | 400-900nm |
| Max. Throughput Power | 3.5w/mm2 TEMOO |
