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April 18, 2023
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Id: 47215

Low Polarization Extinction Ratio (PER) Series SLD


Act as the light source, SLD is one of the key devices of high performance IFOG. The design and fabricating process of SLD is optimized for IFOG.

Low PER SLD is fabricated with high stability of output optical power, high symmetry in the optical spectrum, and high reliability during all working temperature range.

Standard 8-pin butterfly structure is used for compacted hermetic package. The chip temperature can be controlled by external PCB to realize long term stable operation.

Cooperating with PANWOO PMFS, MIOC, and PINFET, the IFOG performance can be increased, such as Bias Instability and Repeatability, Angular Random Walk, and Scale Factor Linearity.


  • High Optical Output Power
  • Excellent Stability of Optical Power
  • High PER (Polarization Extinction Ratio )and Low PER is Optional
  • Low Electrical Power Consumption
  • Wide Operating Temperature Range


  • Fiber Optic Gyroscope (FOG)
  • Fiber Optic Current Transformer(FOCT)
  • Optical Coherence Tomography (OCT)
  • Biomedical Imaging
  • Other Fiber Optic Sensing
  • Instrumentation
Type Parameter Symbol Unit Typical Value
Optical Central Wavelength lc nm 1305±15
  Spectrum Bandwidth BW nm ≥35

Optical Power @100mA

P mW 200~400 SLD-311A
        400~800 SLD-312A
        ≥800 SLD-313A
  Spectrum Ripple Ripple dB ≤0.2

Extinction Ratio

PER dB ≤1.2 or ≥12
  Optical Power Changing @ Full Working Temperature


DP % ≤3
Electrical Operating TEC


ITEC mA ≤700 (@ Full Working Temperature Range)

Max TEC Current

ITmax mA ≥1200 (For Quick Start Status Usage)
Package Package Type - - Butterfly 8 pins
  Package Size

(without pins)

- mm 22´12.6 ´(7.3~8.0)
  Fiber Pigtail Type - - PM/SM
  Fiber Pigtail Length L m ≥1.0
Environment Operating


TW -45~+70
  Storage Temperature TS -55~+85


Contact Information
Address: WorldWide,
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