


【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.
| 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 | 0.5A (max) |
| Operating voltage | 3.3VDC |
| Modulation input (TTL) | 0-5VDC |
| Modulation speed | 3kHz |
| Storage temperature | 0-40°C |
| Operating temperature | 10-25°C (typ), 40°C (max) |
| Operating humidity | Non-condensing |
| Dimensions (D×L) | 25.4×76.2mm |


| 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 | |||||||