---
title: "1550nm Single Frequency Pulsed Fiber Lasers | SPFL Series"
url: https://stacklist.com/card/56cda90c-5ab7-40aa-b538-f2b1289fc903
source_url: "https://singlefrequencylaser.com/products/spfl-series-1550-nm-single-frequency-pulsed-fiber-lasers"
stack: https://stacklist.com/stack/981a45cb-c212-499b-92db-9835b98b1323
summary: "SPFL Series 1550 nm Single-Frequency Pulsed Fiber Lasers are designed for coherent Doppler wind lidar applications, available in two models (SPFL-10 and SPFL-300) with single-pulse energies of 10 μJ and 300 μJ respectively. The lasers feature adjustable repetition rates, pulse widths, and waveforms with linewidths as low as 1 kHz, operating in an eye-safe wavelength band with high spectral signal-to-noise ratio and low power consumption for outdoor operation."
tags: "fiber-laser, 1550nm, pulsed-laser, coherent-doppler, wind-lidar, single-frequency, laser-specifications"
key_entities: "SPFL Series (technology), 1550 nm Single-Frequency Pulsed Fiber Lasers (technology), Coherent Doppler wind lidar (concept), SPFL-10 (technology), SPFL-300 (technology), atmospheric environmental laser remote sensing (concept), wind resource assessment (concept)"
classification: "reference"
content_hash: "sha256:0b3d1fdd51ff218892fdfa96171d9f37d733486bd7d7787b4544aa563c0cc282"
acp_version: "0.2"
token_counts_approximate: 707
visibility: public
agent_accessible: true
status: "final"
---

# 1550nm Single Frequency Pulsed Fiber Lasers | SPFL Series

Fiber Laser Series SPFL Series 1550 nm Single-Frequency Pulsed Fiber Lasers The SPFL series lasers are divided into two models based on single-pulse energy (10 μJ and 300 μJ): SPFL-10 and SPFL-300. This series is specifically developed for coherent Doppler wind lidar applications, operating in an eye-safe laser wavelength band with a near Fourier-transform-limited spectrum. The laser repetition rate, pulse width, and waveform are adjustable, meeting system requirements such as different range resolutions and wind-speed measurement accuracies. High-precision low-noise current driving and temperature control, high-speed pulse waveform pre-shaping, suppression of fiber nonlinear optical effects, and spectral noise suppression ensure high output spectral signal-to-noise ratio, smooth and editable waveforms, and high single-pulse energy. The low-power-consumption design supports long-term outdoor operation under harsh environmental conditions. Get Quote Now Key Features Singlepulse energy: 10 / 300 μJ Adjustable pulse width Linewidth as low as 1 kHz High polarization extinction ratio, high spectral signaltonoise ratio, and excellent beam quality Applications Coherent Doppler wind lidar Atmospheric environmental laser remote sensing Wind resource assessment and surveying Aerodynamics and environmental science research Technical Parameters Parameter Unit SPFL-10 SPFL-300 Linewidth kHz ≤300 ≤3 Central Wavelength nm 1545 / 1550 / 1555 1545 / 1550 / 1555 AOM Frequency Shift MHz 160 80 Pulse Repetition Rate kHz ≤20 ≤10 Pulse Width (FWHM) ns 50–500 200–600 Single Pulse Energy µJ ≥10 @ 200 ns ≥300 @ 600 ns Pulse Extinction Ratio dB ≥100 ≥100 Polarization Extinction Ratio dB ≥20 ≥20 Side-Mode Suppression Ratio dB ≥50 ≥50 Beam Quality (M²) — ≤1.3 ≤1.3 Output Isolation dB ≥30 ≥28 Power Stability (RMS) % ≤3 ≤3 Output Fiber Type — PM1550 PLMA-GDF-25/300 Output Interface — Optical switch, FC/APC FC/APC LO Output Power mW ≥2 2–3 LO Output Fiber Type — PM1550 PM1550 LO Output Interface — FC/APC FC/APC Coupler — Built-in 50/50 Built-in 50/50 Functional Parameters Communication Protocol — RS232 RS232 Trigger Mode — Internal / External Internal / External Cooling Method — Conduction cooling Conduction cooling Power Supply VDC 12–24 24 Average Power Consumption W ≤20 ≤70 Environmental Parameters Operating Temperature ℃ −40 to 60 −40 to 60 Storage Temperature ℃ −40 to 80 −40 to 80 Relative Humidity % ≤80 ≤80 Structural Dimensions SPFL Series 1550 nm Single-Frequency Pulsed Fiber Lasers - Diagram 1 SPFL Series 1550 nm Single-Frequency Pulsed Fiber Lasers - Diagram 2 Need More Information? Our technical team is ready to help you find the perfect laser solution for your specific requirements. Get detailed specifications, custom configurations, and expert consultation. Request a Quote Browse All Products