Sunpump

Single frequency semiconductor laser

Model:RO系列
Single frequency semiconductor laser
Single frequency semiconductor laser
Single frequency semiconductor laser
Single frequency semiconductor laser

Overview

The RO Series single frequency semiconductor laser uses volume holographic grating (SureLock™ wavelength-stabilized technology) for narrow linewidth and high wavelength stability output, with wavelength stability of 0.015nm/°C and linewidth of 50–300MHz (typical, depending on wavelength), coherence length of about 1m (typical). The module integrates active TEC precision temperature control (±0.01°C) and precision current control circuitry, with long-term power stability better than 1% and noise <0.3% RMS. It features a compact cylindrical package with collimated beam output, easy mounting and integration. TTL external modulation (0–5V, 3kHz) is supported, and custom wavelengths are available from 636nm to 808nm in 2nm increments. Ideal for laboratory and industrial applications, including Raman spectroscopy, interferometry and metrology, HeNe replacement, holographic recording, bio-instrumentation, sensing and analytical instrumentation.

Description

【Overview】

The RO Series single frequency laser module integrates SureLock™ wavelength-stabilized lasers, active TEC cooling and precision current control circuitry into a compact, cylindrical package with collimated single frequency output, designed for precision instrumentation and laboratory applications. The built-in temperature controller maintains the laser diode temperature within ±0.01°C, resulting in long-term power stability better than 1%.

【Key Features】

(1) Single frequency output, linewidth 50–300MHz (typical, wavelength dependent);

(2) Wavelength stability 0.015nm/°C;

(3) Active TEC control ±0.01°C, long-term power stability <1%;

(4) Noise <0.3% RMS;

(5) Collimated output beam in compact cylindrical package, easy to mount;

(6) TTL modulation input (0–5V, 3kHz);

(7) Wavelengths from 636nm to 808nm, custom wavelengths in 2nm increments.

【Typical Applications】

Raman spectroscopy, interferometry and metrology, HeNe replacement, holographic recording, bio-instrumentation, sensing, graphic arts and analytical instrumentation.

Specifications

640nmPower 7mW; Linewidth 150MHz; Beam size 0.5×2.0mm; Wavelength tolerance ±1nm
658nmPower 30mW; Linewidth 300MHz; Beam size 0.7×1.1mm; Wavelength tolerance ±1nm
685nmPower 40mW; Linewidth 50MHz; Beam size 0.9×1.4mm; Wavelength tolerance ±1nm
690nmPower 40mW; Linewidth 100MHz; Beam size 0.9×1.5mm; Wavelength tolerance ±1nm
780.25nmPower 75mW; Linewidth 50MHz; Beam size 0.8×1.5mm; Wavelength tolerance ±0.2nm
785nmPower 75mW; Linewidth 50MHz; Beam size 0.9×1.7mm; Wavelength tolerance ±1nm
808nmPower 150mW; Linewidth 50MHz; Beam size 0.9×1.7mm; Wavelength tolerance ±1nm
Spatial modeSingle Mode
Polarization100:1
Beam divergence1mrad (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 current0.5A (max)
Operating voltage3.3VDC
Modulation input (TTL)0-5VDC
Modulation speed3kHz
Storage temperature0-40°C
Operating temperature10-25°C (typ), 40°C (max)
Operating humidityNon-condensing
Dimensions (D×L)25.4×76.2mm

Technical Data

 

RO系列激光器
中心波长 633nm 638nm 658nm 685nm 690nm 780.25 785nm 808nm
功率 40/70mW 30mW 30mW 40mW 40mW 75mW 75/100mW 150mW
线宽(MHz) 150 300 300 50 100 50 50 50
光束直径mm 0.6x0.9 0.6x0.8 0.7x1.1 0.9x1.4 0.9x1.5 0.8x1.5 0.9x1.7 0.9x1.7
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