Audited Supplier
Special Laser for Gas Detection
Fiber Transceiver
ODF
ISO, RoHS
New
Customized Logo
ZG
Box
Small
Mianyang, China
Product Description
Temperature controlled pigtail laser series, using quantum well structure DFB laser, built-in semiconductor refrigeration, advanced laser welding process to achieve butterfly tail fiber packaging, compact structure, small volume, widely used in the field of optical fiber communication; Due to the advantages of high power and wavelength stability under high precision temperature control of semiconductor refrigeration, laser is widely used in the field of optical fiber sensor.
Features
Imported quantum well structure(OMQs) DFB semiconductor laser chip
Stable wavelength
High output power
hermetic package
Packaging:BF14 Pigtail type,TF8 space type,TO39 and other customized
Applications
Fiber optic Gas detection system
Production and testing of passive component for Gas detection
Rated limit operating conditions:
| Parameters | Symbol | Value | Unit |
| Forward current of laser diode | If(LD) | 100 | mA |
| Reverse voltage of laser diode | Vr(LD) | 2 | V |
| Operating current of backlight detector | If(PD) | 2 | mA |
| Operating voltage of backlight detector | Vr(PD) | 20 | V |
| Operating current of refrigerator | ITEC | 2.4 | A |
| Operating voltage of refrigerator | VTEC | 2.9 | V |
| Operating temperature | Topr | -20~+70 | ºC |
| Storage temperature | Tstg | -40~+85 | ºC |
| Lead welding temperature/time | Tsld | 260/10 | ºC/s |
| Parameters | Symbol | Condition | Min. | Typ. | Max. | Unit |
| Optical power | PO | CW | 3 | 10 | mW | |
| Threshold current | Ith | CW | − | 12 | 18 | mA |
| Operating current | Iop | CW, 5mW | - | − | 100 | mA |
| Operating voltage | Vop | CW, 5mW | − | 1.5 | 2.0 | V |
| Slope efficiency | η | CW, 5mW | 0.05 | 0.1 | − | mW/mA |
| Peak wavelength | λp | CW, 5mW@25ºC | λc -1 | λc | λc+ 1 | nm |
| Wavelength stability | λs | CW,5mW@25ºC | -0.1nm | +0.1 | dB | |
| Side mode suppression ratio | SMSR | CW, 5mW | 35 | − | − | nm |
| Spectral width(20dB) | Δλ | CW, 5mW | − | 0.2 | nm/ºC | |
| Wavelength drift coefficient with temperature | Δλ/T | Steady operating current | 0.1 | nm/ºC | ||
| Wavelength drift coefficient with current | Δλ/I | Steady operating temperature | 0.01 | nm/mA | ||
| Thermistor | Rth | Ttherm = 25ºC | 9.5 | 10 | 10.5 | kΩ |
In gas detection, according to the absorption spectrum data provided by HITRAN, there are usually several absorption peaks for the same gas. Customers should choose the best center wavelength location according to their own system needs.
Gas absorption reference table:
| Gas component | Absorption wavelength |
| O2 | 761nm,764nm (VCSEL) |
| HF | 1268.7nm,1273nm,1278nm |
| H2O | 1368.59nm,1392nm |
| NH3 | 1512nm |
| C2H2 | 1532.68nm |
| CO | 1567nm |
| H2S | 1578nm |
| Co2 | 1580nm,2.0um |
| C2H4 | 1620nm,1627nm |
| CH4 | 1647nm,1650.9nm,1653.7nm,1660nm |
| HCl | 1742nm |
External dimensions:
