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d2:d2_250_heterodyne_module

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Fig. 1: D2-250 Heterodyne Module

D2-250 Heterodyne Module

Model No. D2-250

Document Revision: 1

Document Last Updated on 2021/08/26 14:26

Please read Limited Warranty and General Warnings and Cautions prior to operating the D2-250.

Description

The D2-250 heterodyne module is designed to provide a fiber-coupled heterodyne optical beat note formed by picking-off a small proportion of light from each of two laser beams. Light is coupled into a multi-mode fiber. A second output port can be used to align the overlap the two picked-off beams. The light entering the module should be linearly polarized in either vertical or horizontal direction for best results.

Purchase Includes

  • D2-250 Heterodyne Module

Absolute Maximum Ratings

Note: All modules designed to be operated in laboratory environment

Parameter Rating
Environmental Temperature >15°C and <30°C
Environmental Humidity <60%
Environmental Dew Points <15°C

Specifications

Value Units
In-coupling Free-space %
Wavelength Range 700 - 1,000 nm
Input Power Range 0.1 - 200 mW
Pick-off Percentage 1 - 98 %
Transmission up to 98 %
Input Polarization Linear Horizontal or Vertical
Minimum Power in Beat Note >50 μW, optimally 200 μW for use with D2-160
Maximum Power at Detector1) <1 mW
Fiber Connector FC
Compatible Fiber Type MM, PM

Components

Coming Soon! Enter Physical Description Here

Alignment Procedure

Coming Soon! Enter Alignment Procedure Here

Fig. ##: D2-250 Heterodyne Module Fig. 3: D2-250 Key Components Fig. 2: D2-250 in phase lock system

1)
In the optical beat note. Since the beat note is delivered through a multi-mode fiber for ease of alignment, the power at the detector is not necessarily the same as the power in the beat note. Damage may occur to the optical element if >1 mW of overall optical power is delivered to the detector.
d2/d2_250_heterodyne_module.1462845192.txt.gz · Last modified: 2021/08/26 14:26 (external edit)