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Rapidly Swept Tunable Laser
商品货号:ECS000376
商品品牌:Thorlabs
PDF 文档: DownloadRapidly Swept Tunable Laserdetails Document
详细介绍

Features

  • Ideal for Optical Coherence Tomography
  • Center Wavlength (Typical) : 1325 nm
  • Fast Wavelength Sweep Rate: 16 kHz
  • Tuning Range: 120 to 150 nm
  • Average Optical Power Output: 12 mW
  • StaticPeak Power: 25.0 mW

Thorlabs' SL1325-P16 Frequency Swept Tunable Laser is specifically designed for Swept Source OCT applications. With a 16 kHz repetition rate and coherence length of 6 to 8mm, this lasers systems deliver up to 12mW of average optical power through single mode fiber and is newly designed to be even more robust and compact. This system is configured with 100-240 VAC inputs and an RS232 interface that allows remote control of key laser functions. Signal outputs are provided on standard BNC connectors.

Swept Source Optical Coherence Tomography OCT (SSOCT) and Optical Frequency Domain Reflectometry (OFDR) provide real-time high resolution cross-sectional imaging of turbid media. These applications require a specially designed laser source that can sweep a wide wavelength range at very high speeds. A wide spectral tuning range is required for high axial resolution OCT images, and a high sweep speed is needed to obtain real-time 2D and 3D OCT imaging speeds. Thorlabs now offers a variety of frequency swept laser sources based on an external cavity semiconductor tunable laser designed and optimized for SSOCT and OFDR applications.

sl1325int&spec

(a) Temporal Intensity Profile of the Laser

(b) Optical Spectrum of the Laser

Parameter Min Typical Max Units
Center Wavelength - 1325 - nm
Tuning Range (-10dB cut off point) 120 - 150 nm
Repetition Rate ±200Hz   16k   kHz
Average Optical Output Power* 10 12 15 nW
Optical Power Stability -0.5 - 0.5 dB
Signal Source Spontaneous Emission Ratio (STSER) - 25 - dB
Optical Isolation 50 - - dB
Operating Temperature 10 - 40 °C
Storage Temperature 0 - 70 °C
Difference in Optical Powerat Forward and Back Scan 0 - 20 %
Coherence Length 6 - 8 nm
Laser Classification (per IEC 60825-1)   Class 1M   -
Linear Polarization - >80:1 - -
Return Loss - 40 - dB
Physical Size (w x d x h)   315 x 295 x 146   mm
* Averaged over 1 s
Forward to forward scan or backward to backward scan during 1 hr usage
Measured at laser output facet

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