Stabilized HeNe Laser
SL 04-Series
Design and Operation
Our SL 04-Series stabilized HeNe lasers employ a dual longitudinal mode stabilization technique providing high frequency and amplitude stabilities, low optical feedback, and extremely rapid warm-up. They consist of a compact cylindrical head incorporating the laser tube, plus a separate table-top housing incorporating a high-voltage supply and control electronics equipped with a front-panel switch for selecting frequency-stabilized or amplitude-stabilized mode of operation. An internal thread at their beam exit provides a rigid mounting for mechanical shutters or various types of optical components. Fiber couplers mating to singlemode or multimode fibers are available as an option.
Technical Data
Model SL 04/1
Wavelength
nm
632.8
Output power
mW
≥ 1.2 (typ. 1.5)
Amplitude noise (30 Hz - 10 MHz)
%
< 0.2
Beam diameter (TEM00)
mm
0.55
Beam divergence (TEM00)
mrad
1.5
Beam polarization
linearly polarized longitudinal mode
Warm-up time to achieve stable operation
min
≤ 10
with frequency control: Frequency stability over 1min / 1h / 24h relatively
or absolutely after 40 min warm-up
Amplitude stability
MHz
%
± 1∙10-9 / ± 2∙10-9 / ± 5∙10-9
ca. ± 0.5 / ± 1 / ± 2.5
< 5
with amplitude control:
Amplitude stability 1min / 24h
%
< 0.2 / < 0.3
Maximum thermal frequency drift
MHz/K
< 1
Maximum tolerated optical feedback
< 10-5
Operating temperature range / Storage temperature range
°C
+ 15 ... + 30 / - 20 ... + 50
Typical life time
h
30,000
Power consumption in stabilized condition
W
< 20
Line voltage / frequency
AC
100 ... 240 V / 47 ... 63 Hz
Dimensions of laser head [Ø x L] / electronic unit [W x H x D]
mm
Ø 45 x 314 / 172 x 60 x 230
Internal thread at beam exit
1.000˝-32 (C-Mount)
Length of cable between laser head and electronic unit
m
1 (optionally up to 2)
Mass of laser head incl. cable / electronic unit
g
900 / 1,600
Laser safety class according to EN 60825-1 / ANSI Z136.1 (CDRH)
3R / IIIa
Major Features and Benefits
• High frequency or amplitude stability
• Two operation modes: frequency stabilized or amplitude stabilized
• Rapid warm-up
• Compact design
• Internal thread at beam exit for installing items such as fiber couplers
• Bear the CE-symbol certifying compliance with: EC-Guidelines: 73/23/EEC und 89/336/EEC Harmonized EN-Standards: EN 61010-1, EN 60825-1, EN 55011 and EN 50082-1
Options
• Certificate with absolute frequency measured in comparison with an iodine-stabilized HeNe laser
• Marking indicating the beam‘s plane of polarization
• Adjustable operating temperature range
• Fiber coupler installation and alignment
• Installation and alignment of a Faraday isolator in order to eliminate back reflections
• Longer laser head on request
商品属性 [波长] 632.8nm [功率] ≥ 1.2mW (typ. 1.5)