1550nm Nanosecond Pulsed Erbium Doped Fiber Laser for LiDAR System
Techwin 1.5µm Nanosecond Pulsed Erbium Doped Fiber with Broadband Linewidth (<1nm) and Ultra Low Phase Noise, Ultra Low Relative Intensity Noise (RIN) 1550nm Fiber Laser Source for LiDAR System
The nanosecond pulsed fiber laser is commonly designed with master oscillator power amplifier (MOPA) architecture. The master oscillator generates initial pulses at ns level. After pulse shaping, the single-stage or multi-stage power amplifier boosts the pulse supplied by the oscillator to achieve high power output.
The nanosecond pulsed fiber laser is a high power pulsed laser source based on the wavelength which is safe to human eyes. It adopts high performance narrow linewidth distributed feedback (DFB) semiconductor laser as seed source, and built-in signal generator. The multi-stage optical amplification is optimized to achieve high peak power laser output with ns level pulse width. This nanosecond pulsed fiber laser is suitable for distributed temperature sensing (DTS) system, fiber optic sensing, LiDAR and other applications in various industries.
These lasers are powered via 5-12V DC power supply, designed with industrial standard DB25 communication port. Besides, the pulse output can also be achieved by external TTL signal, suited for system integration.
LiDAR, which stands for Light Detection and Ranging, is a remote sensing method that uses light in the form of a pulsed fiber laser to measure ranges (variable distances) to the Earth. These fiber laser light pulses—combined with other data recorded by the airborne system — generate precise, three-dimensional information about the shape of the Earth and its surface characteristics.
A LiDAR instrument principally consists of a fiber laser, a scanner, and a specialized GPS receiver. Airplanes and helicopters are the most commonly used platforms for acquiring LiDAR data over broad areas. Two types of LiDAR are topographic and bathymetric. Topographic LiDAR typically uses a near-infrared fiber laser to map the land, while bathymetric LiDAR uses water-penetrating green light to also measure seafloor and riverbed elevations.
LiDAR systems allow scientists and mapping professionals to examine both natural and manmade environments with accuracy, precision, and flexibility. Scientists are using LiDAR to produce more accurate shoreline maps, make digital elevation models for use in geographic information systems, to assist in emergency response operations, and in many other applications.
- Eye-safe operating wavelength: 1550nm
- Peak power output: 100W
- Repetition rate adjusting range: 1kHz-1MHz
- Pulse width: 1ns-250ns
- Near diffraction-limited beam quality
- DC power supply, modular package
- Distributed temperature sensing (DTS) system
- Fiber optic sensing
- LiDAR
- Remote sensing surveying
- Free space communication
- Other scientific research tasks
Specifications:
|
Parameter |
Unit |
Specification |
||||
|
Min |
Typ. |
Max |
||||
| Part no. |
|
CKLS-1550-M-PL |
||||
| Wavelength range |
nm |
1527 |
1550 |
1570 |
||
| Spectral width (FWHM) |
nm |
- |
0.3 |
1 |
||
| Peak power1 |
W |
20 |
30 |
100 |
||
| Pulse width2 |
ns |
1 |
10 |
250 |
||
| Repetition rate3 |
kHz |
1 |
10 |
1000 |
||
| Beam quality |
M2 |
- |
1.1 |
1.2 |
||
| Side-mode Suppression Ratio (SMSR) |
dB |
35 |
- |
- |
||
| Output power stability (15mins) |
dB |
- |
±0.003 |
±0.005 |
||
| Output power stability (8hrs) |
dB |
- |
±0.03 |
±0.05 |
||
| Output isolation |
dB |
35 |
- |
- |
||
| Return loss |
dB |
40 |
- |
- |
||
| Operating temperature |
℃ |
-25 |
- |
50 |
||
| Storage temperature |
℃ |
-40 |
- |
85 |
||
| Output fiber type |
|
SMF-28 |
||||
| Output fiber length |
m |
> 1 |
||||
| Optical connector |
|
FC/APC |
||||
| Trigger mode |
|
Internal or External TTL Trigger |
||||
| Signal interface |
|
SMA |
||||
| Control interface |
|
RS232 |
||||
| Power supply |
VDC |
5-24 |
||||
| Dimension |
mm |
150(L)x125(W)x25(H) |
||||
Specifications:
· Higher output power can be customized.
· Pulse width is optional or tunable from 1 to 250ns.
· Repetition rate is optional or tunable from 1kHz to 1MHz.
Ordering Information:
· CKLS-1550-M-PL-<PW>
· M: Module
· PW: Peak power in W. Example: 30-30W, 50-50W
Techwin is known as an expert company in developing and manufacturing of fiber lasers, fiber amplifiers and fiber sources. We also strive to provide our customers with custom fiber laser solutions suited for your applications. All of our high-power fiber lasers and amplifiers are manufactured following a rigorous quality management system. We are more than happy to share our laser technology with worldwide customers, and committed to earn the ongoing trust of our customers with our industrial fiber lasers coupled with expert support and service in various industrial segments.
