Ultra-narrow linewidth single-frequency laser module-DFB laser | SLED Module

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.