Definition
The 1240nm FBG laser is a laser diode with a specific wavelength. Its core feature is the use of fiber Bragg grating (FBG) technology, which is encapsulated in a BTF. Its working principle is mainly based on the reflection and selection characteristics of the fiber Bragg grating. When the light generated by the laser diode propagates in the optical fiber and encounters the FBG, the FBG selectively reflects light of a specific wavelength (i.e., 1240nm), while allowing light of other wavelengths to pass through.
Feature
High output power
Narrow spectral bandwidth
High polarization extinction ratio
Optical fiber coupling packaging
Customizable wavelength tolerance and bandwidth
Application
Raman pumping
Medical field
Industrial processing and manufacturing
Data communication
Scientific research
Specification
Parameters | Min | Typ | Max | Unit | Note |
Chip temperature | 20 | 25 | 50 | ℃ |
|
Forward current |
| 1200 | 1500 | mA |
|
Output power | 25 |
| 500 | mW |
|
Forward current @ 400mW |
|
| 1500 | mA |
|
Forward voltage @ 400mW |
| 1.8 | 2.1 | V |
|
Current |
| 80 | 180 | mA |
|
Average wavelength (select as needed) | 1230 |
| 1250 | nm |
|
Average wavelength tolerance |
|
| ±2 | nm |
|
Bandwidth (FWHM) | 0.1 | 0.4 | 1.2 | nm | Resolution 50pm |
Wavelength shift caused by FBG temperature |
| 0.01 |
| nm/℃ |
|
PER | 15 | 18 |
| dB |
|
Polarization degree |
| TE |
|
|
|
Absolute maximum rating
Parameters | Min | Max | Unit |
Forward current |
| 1600 | mA |
Reverse voltage |
| 2 | V |
TEC current |
| 3 | A |
TEC voltage |
| 4 | V |
Chip operating temperature | 5 | 55 | ℃ |
Shell operating temperature | 0 | 70 | ℃ |
Monitoring photodiode bias voltage (optional) |
| 5 | V |
Chip operating temperature | 5 | 55 | ℃ |
Shell operating temperature | 0 | 70 | ℃ |
Pin soldering temperature (up to 10 seconds, maximum shell temperature 120°C) |
| 300 | ℃ |
Storage temperature | -40 | 85 | ℃ |
Fiber Bragg grating operating temperature | -40 | 85 | ℃ |
Fiber band radius | 3 |
| cm |
Typical performance (reference only)
Thermistor specifications
Parameter | Specification | Unit |
Type | NTC |
|
Resistance @ 25℃ | 10±0.1 | kOhm |
Beta 25-85℃ | 3435±1% | K |
Fiber specifications
Parameters | Value | Value | Unit |
Fiber type | HI1060 | PM980 |
|
Numerical aperture (typical value) | 0.14 | 0.12 |
|
Cut-off wavelength | 920±50 | 900±70 | nm |
Mode field (core) diameter | 6.2±0.3@1060nm | 6.6±0.3@1060nm | µm |
Cladding diameter | 125±1 | 125±1 | µm |
Coating (buffer) diameter | 245±15 | 245±15 | µm |
Casing (optional) | 900 | 900 | µm |
Connector | FC/APC | FC/APC |
|
Key | narrow | narrow |
|
Dimension
joe@zg-photonics.com
0816 - 2384466
