Ultra narrow linewidth single-frequency laser module
The low noise single frequency fiber laser module comes with the particular ultra-narrow filter and the polarization controlling technology to realize PM, single longitudinal mode and ultra-narrow linewidth output.

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Features
The spectral linewidth<3KHz;
The maximum coherence length is 100 km;
Stable fiber DFB resonator structure;
High frequency stability, no mode hopping;
High side mode rejection ratio;
Seismic design of module;
Low relative intensity noise.

Applications
Laser seed source;
Acoustic sensor and hydrophone;
Laser spectroscopy, atmospheric absorption;
Optical fiber distributed sensing;
Coherent radar ranging remote sensing;
Coherent optical communication.

Electro-Optical Parameters

Parameter

Unit

Value

Central wavelength

nm

1550

Output power

mW

10, 20, 50

Optical wave

-

continuous wave

Polarization state

-

Linear polarization

Polarization extinction ratio

dB

>23

Spectral linewidth

KHz

2~10

Frequency instability

MHz

<20(min) <100(Long-term)

Phase noise @1-1.95KHz

dB

<-110

Side mode suppression ratio

dB

>60

Power instability @>3h

-

<1%


Package

Original Carton Package;
As customers‘ requirement.

Shipping
5-10 Working days after receive the payment;
Shipment: Air transportation(DHL / UPS / TNT / Fedex / EMS / CHINA POST);
Shipping fee depends on the weight and size.


Payment
For large orders: T/T, Credit card;
For small orders: Paypal are accepted.
 
Warranty
All products have been tested before shipping out;
All products have 1-3 years warranty.(After the quality guarantee period began to charge appropriate maintenance service fee.) 
 
Refund & Replacement
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.
 
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Contact: Lydia Liu
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