Box Optronics provides the 1532nm DFB fiber-coupled BTF laser diode for acetylene gas detection in a 14PIN BTF package. These devices offer a very stable CW performance. SM fiber and PM fiber pigtail are optional. They have built-in TEC coolers and monitor PDs. They're frequently used in optical sensing. 1532nm DFB laser diodes can be used in acetylene(C2H2) gas detection system.
● Multi-Quantum Well (MQW) Distributed Feedback(DFB) lasers;
● SMF-28e or PMF-1550 fiber pigtail;
● 14PIN Butterfly package;
● Built-in thermistor, and TEC;
● RoHS Compliant.
● TDLAS;
● Optical coherence experiment;
● Optical sensing.
| Parameter | Symbol | Condition | Min. | Typ. | Max. | Unit |
| Center wavelength | λc | TL=15～35℃ CW | 11531.68 | 1532.68 | 1533.68 | nm |
| Optical output power | PF | - | 6 | - | 20 | mW |
| Threshold current | ITH | TL=25℃ | - | - | 20 | mA |
| Operating voltage | VOP | 25℃ | - | - | 2.5 | V |
| Operating current | Iop | - | - | - | 120 | mA |
| Side-mode suppression ratio | SMSR | - | 30 | - | - | dB |
| Optical return loss | ORL | - | 40 | - | - | dB |
| Optical isolation | ISO | 25℃ | 30 | - | - | dB |
| Polarization extinction ratio | ER | - | 18 | - | - | dB |
| MPD Dark current | ID | IOP =0mA, VRM=5V | - | - | 0.2 | uA |
| MPD Current relative to output power | - | VRM=5V | 10 | - | 200 | mA/W |
| TEC Voltage | VTEC | - | -2.5 | - | 3.8 | V |
| Bandwidth | BW | - | - | 2.5 | - | GHz |
| Thermistor resistance | RTH | 25℃ | 9.5 | 10 | 10.5 | KΩ |
| Thermistor B- value | β | 25℃/ 80℃ | - | 3950 | - | K |
| Carrier-to-Noise ratio | CNR | - | 55 | - | - | dB |
| Composite second- order | CSO | - | - | - | -55 | dBm |
| Composite triple bea | - | - | - | - | -64 | dBc |
All products have been tested before shipping out;
All products have 1 years warranty.(After the quality guarantee period began to charge appropriate maintenance service fee.)
We appreciate your business and offer an instant 7 days return policy. (7 days after receiving the items);
If the items you purchase from our store are not of perfected quality, that is they don‘t work electronically to manufacturers specifications, simply return them to us for replacement or refund;
If the items are defective, please notify us within 3 days of delivery;
Any items must be returned in their original condition to qualify for a refund or replacement;
The buyer is responsible for all the shipping cost incurred.
Q: Do you have laser diodes for other gas detection?
A: Yes, like CO, CO2, CH4...Please contact us for more info.
Q: We don't need 20mW. Too much. Can it be smaller?
A: 10mW and 20mW are optional.
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