SureLock™ LM Series/Compact Laser Modules

Coherent’s LM Series Compact Laser Modules incorporate the SureLock VHG-stabilized laser diode to deliver steady, single frequency or spectrum narrowed performance in an ultra-compact footprint.

Offering both computer and integrated user controls, the LM Series includes precision temperature and current controls to deliver meter level coherence length (for single frequency versions), < 0.06 nm linewidth (for spectrum narrowed versions) and 1% power stability with less than 1 minute warm-up. This tightly integrated package makes it the ideal choice for both OEM instrumentation and laboratory applications.

The LM Module is available in wavelengths from 404 nm to 830 nm.

Compact Laser Module for

OEM Instrumentation and Laboratory Applications

Specification Summary

Parameter Single Frequency Wavelengths Unit
Center Wavelength1 Lp 405/406 633 6383 658 685 780.25 785 808 830 nm
Center Wavelength Tolerances nm +/-1 +/-0.5 +/-1 +/-1 +/-1 +/-0.2 +/-1 +/-1 +/-1 nm
Output Power Po 12/25/40 40/70 30 30 40 75 75/100 110 150 mW
Beam Size 0.8 X 0.4 0.6 X 0.9 0.6 X 0.8 0.7 X 1.1 0.9 X 1.4 0.8 X 1.5 0.9 X 1.7 0.9 X 1.7 0.9 X 1.4 mm
Linewidth, Max Δλ 1602 254 300 300 50 50 50 50 250 MHz

SureLock Specifications

1Available in increments of 2 nm
2405 nm laser only
3638 nm also available with circularized beam of 1.5 mm
4633 nm linewidth has been measured at <10 MHz with High Finesse Analyzer

Please specify wavelength at time of ordering. Wavelengths specified in air.


Operating Specifications

Optical Min Typ Max Unit
Spatial Mode Single Mode
Polarization 100:1
Noise (RMS, 0-20 MHz) 0.25 0.5 %
Beam Divergence 1 10 mrad
Pointing Stability +/-25 µrad
Power Stability (1 hr) 0.10 0.5 %

SureLock Operating Specifications

Electrical Min Typ Max Unit
Operating Current 1.5 A
Operating Voltage 3.3 VDC
Modulation Input(TTL) 0 5 VDC
Modulation Speed 3 kHz

SureLock Operating Specifications

Environmental Min Typ Max Unit
Storage Temperature4 -10 60 °C
Operating Temperature4 10 25 40 °C
Operation Humidity Non-Condensing
Dimensions 40 x 42.5 x 100 mm

SureLock Operating Specifications

Applications

Application

Raman Spectroscopy
Metrology
HeNe Replacement
Bio-instrumentation
LIDAR
Graphic Arts
Sensing
Analytical Instrumentation
Flow Cytometry

Features & Benefits


  • Single frequency, collimated TEMoo output with long coherence length (~1 m)
  • Remote computer and onboard user controls with integral LCD display
  • Precision temperature and current stabilization
  • Integrated LCD display
  • Ultra-compact footprint
  • Plug and play operation

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