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SL 04-Series

Product catalog summary

Overview
The SL 04-Series stabilized HeNe lasers utilize a dual longitudinal mode stabilization technique to ensure high frequency and amplitude stability, low optical feedback, and quick warm-up. The system includes a compact cylindrical laser head and a separate table-top housing for the high-voltage supply and control electronics. A front-panel switch allows selection between frequency-stabilized and amplitude-stabilized modes. An internal thread at the beam exit facilitates the mounting of mechanical shutters or optical components, with optional fiber couplers available.

Technical Specifications

Wavelength: 632.8 nm
Output Power: ≥ 1.2 mW (typical 1.5 mW)
Amplitude Noise: < 0.2% (30 Hz - 10 MHz)
Beam Diameter: 0.55 mm (TEM00)
Beam Divergence: 1.5 mrad (TEM00)
Beam Polarization: Linearly polarized longitudinal mode
Warm-up Time: ≤ 10 minutes
Frequency Stability: ± 1∙10-9 / ± 2∙10-9 / ± 5∙10-9 over 1 min / 1h / 24h
Amplitude Stability: ca. ± 0.5 / ± 1 / ± 2.5% over 1 min / 1h / 24h
Thermal Frequency Drift: < 1 MHz/K
Optical Feedback Tolerance: < 10-5
Operating Temperature Range: +15°C to +30°C
Storage Temperature Range: -20°C to +50°C
Typical Lifetime: 30,000 hours
Power Consumption: < 20 W
Line Voltage: AC 100-240 V / 47-63 Hz
Dimensions: Laser head Ø 45 x 314 mm; Electronic unit 172 x 60 x 230 mm
Weight: Laser head 900 g; Electronic unit 1,600 g
Laser Safety Class: 3R / IIIa according to EN 60825-1 / ANSI Z136.1

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
CE-certified for compliance with EC-Guidelines and Harmonized EN-Standards

Options

Certificate with absolute frequency measured against 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 to eliminate back reflections
Longer laser head available on request

Warnings
Do not stare into the beam or view the beam using optical instruments. Laser Class 3R / IIIa.

Catalog excerpts

Stabilized HeNe Laser

Open the catalog to page 1

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...

Open the catalog to page 2

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