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℃



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



Linewidth characteristics

Linewidth characteristics


Ordering Info

X1: Wavelength, 1530~1565nm ITU-T DWDM, can be customized upon request

X2: Power, 10dBm

X3: Modulation mode, DM/ CW

X4: Fiber type, SM (Single-mode fiber)/ PM (Polarization-maintaining fiber)

X5: Product grade, A/B/C/D


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Narrow linewidth single-frequency laser


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