RO-USB Series Collimated Single Frequency Laser Modules
Features:
• Single frequency performance
• Precisioninterface cooling and current control via USB
• Wavelength stability 0.015nm/°C
• Noise <0.3% RMS
• Compact, cylindrical package
• Collimated output beam
• Power supply
• Custom wavelengths available
• NoiseBlock™ narrow-band ASE suppression filters and beamsplitters available in
match-ing wavelengths to further reduce linewidth and ASE noiseApplications:
• HeNe Replacement
• Raman Spectroscopy
• Metrology
• Bio-instrumentation
• Graphic Arts
• Sensing
Ondax’s RO Series Single Frequency Collimated Laser Module integrates our SureLock™ wavelength-stabilized lasers with TEC cooling and precision current control circuitry into a compact, cylin-drical package with USB interface. Designed for easy mounting and integration, this rugged self-contained module is ideal for incorpora-tion into precision instrumentation or for laboratory applications. The built-in temperature controller maintains the laser diode temper-ature within ±0.01°C, resulting in excellent power stability that varies less than 1% over the long term.
The RO Module is available in wavelengths from 633nm to 826nm to suit any application.
Specifications:
Parameter
Symbol/Unit
Center Wavelength1
Lp/ nm
633
638
640
643
658
685
690
780.25
785
808
826
Center Wavelength
Tolerance
Lp/ nm
±0.25
±1
±1
±1
±1
±1
±1
±0.2
±1
±1
±1
Output Power
Po/ mW
40 30
30
120*
30
40
40
75
75
110
150
70
120*
100
Beam Size
mm
0.6 x 0.9
2.2 x 1
2.2 x 1
0.6 x 0.9
0.7 x 1.1
0.9 x 1.4
0.9 x 1.5
0.8 x 1.5
0.9 x 1.7
0.9 x 1.7
0.9 x 1.7
0.6 x 0.9
Linewidth, typical
(MHz)
Δλ
150
300
300
20pm
300
300
100
50
50
50
50
20pm
* 120mW 638 and 643 lasers are single mode but narrowband, not single frequency.
Operating Specifications
Optical
Min
Typ
Max
Unit
Spatial Mode
Single Mode
Polarization
100:1
Beam Divergence
1
3
mrad
Pointing Stability
± 25
μrad
Noise (RMS, 0-20 MHz)
0.25
0.5
%
Power Stability (1 hr)
0.10
0.5
%
Electrical
Min
Typ
Max
Unit
Operating Current
3
A
Operating Voltage
3.3
VDC
Modulation Input (TTL)
0
5
VDC
Modulation Speed
3
kHz
Environmental
Min
Typ
Max
Unit
Storage Temperature3
0
40
°C
Operating Temperature3
10
25
40
°C
Operation Humidity
Non-condensing
Dimensions (D x L)
25.4 x 76.2
mm