Narrow linewidth single-frequency laser

Description

ETSC Europe’s narrow linewidth single-frequency laser using an unique the semiconductor external cavity structure. The typical output bandwidth is less than 3KHz linewidth and the wavelength has low sensitivity to vibration. This device has high side-mode suppression ratio, low relative intensity noise and excellent wavelength stability for a variety of applications for harsh environment.

ETSC Europe’s narrow linewidth single-frequency laser has its own patents, high structural stability, mature technology and it is suitable for mass production. This devise complies with Telcordia GR-468 standard and has passed the long-term reliability test.

Feature

Single-mode output, line width is less than 3KHz
Low phase noise and relative intensity noise
Stable structure, low sensitivity to vibration
ITU-T Wavelength from 1530 to 1565nm, can be customized upon request
Working temperature from 0 to 70 degrees
Comply with Telcordia GR-468 standard

Applications

LIDAR
Fiber Optical Hydrophones
Resonant Fiber Optic Gyro
Distributed Fiber Sensing
Coherent Communication
Scientific Research

Parameter

Parameter	Unit	Min.	Typical	Max.	Condition
Output Power	dBm		10		CW
Power stability	%		10		0~70℃
Power stability	%			0.3	±1℃
Center wavelength (ITU-T DWDM)	nm	1530		1565	Std Dev. ± 40 pm
Wavelength Tunable Range	pm		30		Change TEC Temperature
Linewidth	kHz	A: <3,B: <5,C: <10,D: ≧10
low relative intensity noise	µrad/rt-Hz 1m OPD	A: 4,B: 8,D: 22			@200Hz
Optical frequency stability	MHz		3		8 hrs in incubator (beat frequency from two narrow linewidth single-frequency lasers)
side-mode suppression ratio	dB	50
Optical Signal Noise Ratio	dB	60
Polarization extinction ratio	dB	20			Slow axis alignment
Light Isolation	dB	40
Voltage	V	4.75	5	5.25
Power Consumption	W			6	0~70℃
Working Temperature	℃	0		70
Dimensions	mm	100×57×12