Broadband SLED-based light source (BeST-SLEDTM) and spectrometer

Orly Yadid-Pecht, Yonathan Dattner

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations


A small footprint, low power, cost effective single mode fiber coupled broadband light source and spectrometer is presented. It is based on Super Luminescent Diode (SLED) devices and a compact design enables coverage of the 1250 nm-1750 nm region with a total optical power of 50 mW at the output of the fiber. This Broad Spectrum Tunable Super Luminescent (BeST-SLEDTM) light source can operate at temperatures ranging from -40°C to 60°C, and resides in a custom designed 26-pin package. The fiber is a polarization maintaining fiber with a FC/APC connector at the output. Three variations of the BeST-SLEDTM were developed, BEST-SLED™ Bands, BeST-SLEDTM Tunable and BeST-SLEDTM FTNIR. In the Bands version six SLEDs were packaged allowing for one SLED on at a time or any combination of the SLEDs on. In the Tunable version an Acoustic Optical Tunable Filter (AOTF) was integrated into the package allowing the user to select one wavelength at a time to pass into the fiber with resolution of ∼1 nm @1550nm. In the FTNIR version, a Silicon Photonic based interferometer (the Nano-SpecTM) was integrated into the package for a Fourier Transform Near Infrared based Spectrometer and light source. The BeST-SLEDTM is being used in process control applications such as steam quality measurements, oil in water, gas composition and air quality monitoring.

Original languageEnglish
Title of host publicationSmart Photonic and Optoelectronic Integrated Circuits XVIII
EditorsEl-Hang Lee, Louay A. Eldada, Sailing He
ISBN (Electronic)9781628419863
StatePublished - 1 Jan 2016
Externally publishedYes
EventSmart Photonic and Optoelectronic Integrated Circuits XVIII - San Francisco, United States
Duration: 16 Feb 201618 Feb 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceSmart Photonic and Optoelectronic Integrated Circuits XVIII
Country/TerritoryUnited States
CitySan Francisco


  • AOTF
  • Acoustic Optical Tunable Filter
  • Broadband light source
  • Compact tunable light source
  • Fourier Transform Near Infrared
  • NIR
  • Near infrared
  • SLED
  • Spectroscopy
  • Super luminescent diode


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