LM series semiconductor lasers
Overview
The LM Series compact single frequency laser module integrates the Ondax SureLock™ VHG-stabilized laser diode to deliver stable, single frequency collimated output in an ultra-compact footprint (40mm x 42.5mm x 100mm). Offering both computer and integrated user controls with integral LCD display, the LM Series features precision temperature and current controls to deliver better than 1m coherence length and 1% power stability with less than 1 minute warm-up. TTL external modulation (0-5V, 3kHz) is supported, and wavelengths from 405nm to 808nm are available, custom wavelengths in 2nm increments. Ideal for OEM instrumentation and laboratory applications, including Raman spectroscopy, interferometry and metrology, HeNe replacement, bio-instrumentation, LIDAR, graphic arts, sensing and analytical instrumentation.Description
【Overview】
The LM Series compact single frequency laser module incorporates the Ondax SureLock™ VHG-stabilized laser diode to deliver steady, single frequency, collimated TEM00 output in an ultra-compact package. It offers both computer and onboard user controls with integral LCD display, built-in precision temperature and current stabilization, and less than 1 minute warm-up, making it ideal for OEM instrumentation and laboratory applications.
【Key Features】
(1) Single frequency, collimated TEM00 output with coherence length better than 1m;
(2) SureLock™ VHG wavelength stabilization, typical wavelength stability ±1pm;
(3) Precision temperature and current stabilization, power stability better than 1%;
(4) Noise 0.25% (typ), 0.5% (max) RMS 0-20MHz;
(5) Ultra-compact footprint 40mm x 42.5mm x 100mm, plug and play;
(6) TTL modulation (0-5V, 3kHz), computer and onboard LCD controls;
(7) Wavelengths from 405nm to 808nm, custom wavelengths in 2nm increments.
【Typical Applications】
Raman spectroscopy, interferometry and metrology, HeNe replacement, bio-instrumentation, LIDAR, particle counting, graphic arts, sensing and analytical instrumentation.
Specifications
| 405nm | Power 12/25/40mW; Linewidth 160MHz; Beam size 0.8×0.4mm; Wavelength tolerance ±0.5nm |
| 640nm | Power 7mW; Linewidth 150MHz; Beam size 0.5×2.0mm; Wavelength tolerance ±1nm |
| 658nm | Power 30mW; Linewidth 300MHz; Beam size 0.7×1.1mm; Wavelength tolerance ±1nm |
| 685nm | Power 40mW; Linewidth 50MHz; Beam size 0.9×1.4mm; Wavelength tolerance ±1nm |
| 690nm | Power 40mW; Linewidth 100MHz; Beam size 0.9×1.5mm; Wavelength tolerance ±1nm |
| 780.25nm | Power 75mW; Linewidth 50MHz; Beam size 0.8×1.5mm; Wavelength tolerance ±0.2nm |
| 785nm | Power 75mW; Linewidth 50MHz; Beam size 0.9×1.7mm; Wavelength tolerance ±1nm |
| 808nm | Power 150mW; Linewidth 50MHz; Beam size 0.9×1.7mm; Wavelength tolerance ±1nm |
| Spatial mode | Single Mode |
| Polarization | 100:1 |
| Beam divergence | 1mrad (typ), 10mrad (max) |
| Pointing stability | ±25 μrad |
| Noise (RMS, 0-20MHz) | 0.25% (typ), 0.5% (max) |
| Power stability (1hr) | 0.10% (typ), 0.5% (max) |
| Operating current | 1.5A (max) |
| Operating voltage | 3.3VDC |
| Modulation input (TTL) | 0-5VDC |
| Modulation speed | 3kHz |
| Storage temperature | -10~60°C |
| Operating temperature | 10-25°C (typ), 40°C (max) |
| Operating humidity | Non-condensing |
| Dimensions | 40×42.5×100mm (ultra-compact) |
Technical Data
| LM系列激光器 | ||||||||||
| 中心波长 | 405nm | 633nm | 638nm | 658nm | 685nm | 690nm | 780.25 | 785nm | 808nm | 830 |
| 功率 | 12/25/40mW | 40/70mW | 30mW | 30mW | 40mW | 40mW | 75mW | 75/100mW | 150mW | 200mW |
| 线宽（MHz) | 160 | 150 | 300 | 300 | 50 | 100 | 50 | 50 | 50 | 150 |
| 光束直径mm | 0.6x0.3 | 0.6x0.9 | 0.6x0.8 | 0.7x1.1 | 0.9x1.4 | 0.9x1.5 | 0.8x1.5 | 0.9x1.7 | 0.9x1.7 | 0.9x1.4 |
| 空间模式 | Single Mode | |||||||||
| 功率稳定性 | 0.1%（典型） | |||||||||
| 偏振态 | 100:1 | |||||||||
| 发散角 | 1mrad（典型） | |||||||||
| 调制信号 | TTL（0-5V） | |||||||||
| 调制速度 | 3kHz | |||||||||