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.

Overview
Specifications
Additional Information

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	1/1@ 500kHz (Int. Ref. Mode) 5/1 @ 100kHz 18/1 @50kHz 100/1 @10kHz 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 calibration Output 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

Standard System (532nm)	LASS-II with Model 370 E-O Modulator
Large Aperture (532nm)	LASS-II with Model 370LA E-O Modulator
532nm-to-1064nm fsec laser	LASS-II with Model 350-105 E-O Modulator
800nm-to-2000nm psec laser	LASS-II with Model 360-80 E-O Modulator
Rack Mount	RM Option
UV and DUV Options	325nm-to-515nm, 257/266nm

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Laser Stabilization Systems