Features
l ITU-T wavelength
l Low phase noise
l Narrow Linewidth: <20KHz
l Optical power: Max.20dBm
l Low RIN noise: -165dBc/Hz @100KHz
l Frequency modulation range: 5GHz
l PM fiber pigtail
l Easy to use
Application
l Distributed fiber Acoustic Sensing system
l LIDAR
l Test & Measurement
l Seed source for fiber lasers
Introduction
KY-CTM-xx narrow linewidth tunable single-frequency laser module is used for the Coherent LIDAR, using an unique the semiconductor external cavity structure. The typical output bandwidth is less than 20KHz linewidth and narrow linewidth FM laser module, with ultra-low RIN noise and excellent Frequency modulation performance, is now widely used in vehicle-mounted lidar and optical fiber sensing detection system. This devise complies with Telcordia GR-468 standard and has passed the long-term reliability test.
Absolute Maximum Ratings
Parameters | Symbol | Unit | Min. | Typ. | Max. |
Operating voltage | Vo | V | 4.7 | 5 | 5.5 |
Operating temperature*** | Top | ºC | -10 |
| 70 |
Storage temperature | Tst | ºC | -40 |
| 85 |
Humidity | RH | % | 5 |
| 90 |
Parameters
Parameters | Min. | Typ. | Max. | Unit | Remark |
Wavelength | 1550, ITU-T | nm | Can be customized |
Output power |
| 16 | 20 | dBm | Can be customized |
RIN noise |
| -165 | -163 | dBm/Hz | @100kHz |
Operating current |
| 400 | 2000 | mA |
|
Operating voltage | 4.75 | 5 | 5.25 | V |
|
Lorentz linewidth |
| 10 | 20 | KHz | Can be customized |
Frequency tuning range |
| 3 | 5 | GHz |
|
Tuning bandwidth |
| 100K | 200K | Hz |
|
Tuning linearity |
|
| 0.5% |
|
|
Side-mode rejection ratio | 50 | 60 |
| dB |
|
Polarization Extinction Ratio | 20 | 23 |
| dB |
|
Optical Isolation | 40 | 45 |
| dB |
|
Connector | FC/APC |
Fiber type | PM |
Power connector | J30J |
Note: The linewidth test scheme is a delay from heterodyne blot frequency test.
Characteristic Curve
Figure1. Spectra and linewidth (CW, 25⁰C)
Dimensions
Unit: mm
Interface definition
SN | PIN | Features/Specifications |
1 | Vcc | Input power supply 5V/ 3A, low noise |
2 | Tx(output) | Data output, RS232/3.3 to5V TTL232 (default) |
3 | Rx(input) | Data entry, RS232/3.3 to5V TTL232 (default) |
4 | Gnd | earthing |
5 | Gnd | earthing |
6 | Vcc | Input power supply 5V/ 3A, low noise |
7 | Mod+(input) | Modulation + |
8 | Mod-(input) | Modulation - |
9 | Enable(input) | Laser output enabled, low level on (default on) |
Order information
KY- CTM-C32- OUT-WL-XX
OUT= Output power
WL= Linewidth: 3KHz, 5KHz, 20KHz, 100KHz
XX=Connector: FC-APC, FC-PC