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Michelson-Type Interferometer
商品货号:ECS000382
商品品牌:Thorlabs
PDF 文档: DownloadMichelson-Type Interferometerdetails Document
详细介绍

Features

  • Low Insertion Loss
  • Flat Wavelength Response
  • Integrated Balanced Signal Detection with Active Aliasing
  • Input for Aiming Beam (660 nm) to Aid Alignment
  • Compact Interferometer Comes Complete with Power Supply

Thorlabs INT-MSI-1300 Michelson-Type Interferometer is easily integrated into either time domain or Fourier domain Optical Coherence Tomography systems (OCT).  Designed to be used inside an OCT system, it contains a fiber coupler network for a Michelson interferometer with outputs for a reference and sample arm. The fiber length is matched on both arms of the interferometer to within 0.2 mm, and the internally used couplers are optimized providing this subassembly with a flat wavelength response and very low polarization-dependant coupling losses. The integrated, high-gain balanced detector includes an active aliasing filter to suppress the generation of aliasing frequencies which would degrade image quality.

The INT-MSI-1300 includes an additional input for a 660 nm aiming laser and a specially designed WDM-coupler that combines the input light (1300 nm) and the alignment laser (660 nm) for ease of alignment, and the housing includes FC/APC angled fiber adapters for robustness and ease of use, making this subassembly easily integrated into both research and OEM OCT systems.

INT-MSI-1300 Specifications
Specification  INT-MSI-1300
Optical  
Interferometer Wavelength Range  1250-1350 nm
Fiber Type  Corning SMF28TM
Input/Output Port FC/APC
Insertion Loss*  <4.2 dB (typ), 5 dB (max)
Path Length Difference (sample and reference arm) <0.2 mm
Electrical  
Detector Material/Type  InGaAs/PIN
Detector Wavelegnth Range  800-1700 nm
Typical Responsivity (max.)  1.0 A/W
Output Bandwidth (3dB) DC-15 MHz
Transimpedance Gain 51 kV/A
Saturation Power** 70 uW
Maximum Input Power** 250mW (Photodiode Damage Threshold)
Electrical Output SMA
DC-Offset < ± 5 mV
Power Supply +/- 12 V, 200 mA
General  
Size 120 x 80 x21 mm

*Includes connector losses of the Input and Output pigtail, measured at the central wavelength

**Conversion gain measured with respect to the output power using a high impedance load, half value with a 50 Ohm impedence.

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