Coherent Interferometer Head Mount specifications:..
– 1.75″ Diameter Aperture.
– Two Starrett 463 micrometer heads,
– Note: The ring that secures the interferometer and the base of this unit are missing.

BMI Surplus, Inc. has a huge inventory of used, new and pre-owned Interferometers for sale.
We will work with you individually to find the perfect set up for your application.
Buy online or give us a call at 781-871-8868. We have experienced customer service representatives standing by ready to help you!

BMI Surplus, Inc. is a dealer in used and sometimes new Surplus Scientific & Industrial Equipment – we cater to clients in search of items to be used for specific applications. We do not offer a guarantee as many of our items are purchased by professionals in need of parts and pieces.
You will find many of our items listed on our website as untested or as parts or repair units even though they are in good used condition.
*Pricing on untested items is discounted at time of listing.

**Shipping, Handling & Freight fees are dependent on your location.
We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
We have 33 years of experience shipping sensitive scientific instruments & industrial equipment!

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***MPN
***OEM Coherent
***SKU*** 37419

This appears to be some sort of interferometer unit for use in a metrology laser distance measurement system. There are two numbers on the part, on one face is 9202, and on the opposite face is 2002-2. There is a fiber optic coupler (FC connector?) on one face, and on the opposite side is a modestly sized aperture. There is a third aperture on one of the two remaining narrow faces.

When looking in the larger aperture the two other apertures are seen side-by-side. This unit lacks the magnetic alignment mirror (present on the other unit we have in stock).

Zygo did manufacture a laser interferometry distance measurement system similar to the well-known Hewlett Packard system, and in fact many components could be directly substituted. This does not appear to be a current product, but dimensionally closely resembles the Compact 1-axis HSPMI Interferometer. It is in superb condition – indeed it looks almost unused.

***MPN 2002-2
***OEM Zygo
***SKU*** 21444

Micron Optics Inc FFPC-1 FFP Controller..
Fiber Fabry-Perot Controller

BMI Surplus, Inc. has a huge inventory of new, used and pre-owned Shutters and Controllers For Sale!
We will work with you individually to find the perfect set up for your application.
Buy online or give us a call at 781-871-8868. We have experienced customer service representatives standing by ready to help you!

BMI Surplus, Inc. is a dealer in used and sometimes new Surplus Scientific & Industrial Equipment – we cater to clients in search of items to be used for specific applications.
We do not offer a guarantee as many of our items are purchased by professionals in need of parts and pieces.
You will find many of our items listed on our website as untested or as parts or repair units even though they are in good used condition.
*Pricing on untested items are discounted at time of listing.

**Shipping, Handling and Freight fees depend on your location.
We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier.
We have 32 years of experience shipping sensitive scientific instruments and industrial equipment!

Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search..
***MPN FFPC-1
***OEM Micron Optics Inc
***SKU*** 18884

Newport Interferometry – Holography System,
We could not find any literature on the system in any of the catalogs, but all of the components are Newport, and it appears to have been marketed as a composite module. The baseplate is 32 inches wide, 8 inches deep, and 1 inch thick. It is supplied with three 5-inch riser posts for securing to an optical table. On the left end of the apparatus ( assuming that the scale faces forward) there is a beam-directing mirror. The laser may be introduced into the system either from component level (8.125 inches) or from an aperture beneath the baseplate depending on the orientation of the mirror.

The next component in the system is a variable beam-splitter that appears to have a motorized drive. There is a small phono plug connector in the housing that we think hold the motor. No cable for the motor was supplied. On each of the exit ports for the variable beam-splitter are shutters with cables extending through apertures in the base.

There are several other components in the system, including some special corner reflectors in the adjustable beam-length portion of the system. The corner reflector position is graduated in cm from 0 to 65 (the path is folded, so the graduations are only 5mm apart). There appears to be some sort of photocell just forward of the P-beam beam-splitter.

We did not get any of the drive electronics for the shutters, the motor for the variable beamsplitter, or the readout for the sensor. Nor is a laser included with the system.

All of the components appear to be in perfect condition and the system is exceptionally clean. Along with this system we also received two very large coated mirrors each held by a pair of vibration damped Newport posts. One of the mirrors is 7.5 x 10 inches, the other mirror is 14 x 18 inches. They are listed separately.

BMI Surplus, Inc. has a huge inventory of new, pre-owned, recycled Interferometry Equipment For Sale!
Buy online or give us a call at 781-871-8868. We have experienced customer service representatives standing by ready to help you!
**Shipping, Handling & Freight fees are dependent on your location. We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier. We have over 30 years of experience shipping sensitive scientific instruments & industrial equipment. We ship with the utmost care!
***MPN
***OEM Newport Research Corp (NRC)
***SKU*** DP183

HP 10702A Linear Interferometer RA Opt.

This item appears to be an HP 10702A Linear Interferometer in which all the labels have been removed. The optical layout of the interferometer body has been scribed in the side of the case recess where the original label would have been. The interferometer consists of a polarizing beam-splitter with three additional components added. Opposite the entry face is a plane-mirror (HP 10724A), and on opposite sides an HP 10703A retroreflector and an HP 10722A converter window. This is essentially the same interferometer as the normal Linear Interferometer, however the retroreflector has been moved opposite the window so the interferometer acts at right-angles to the laser instead of straight ahead.

The angle of the beam-splitter is not critically set within the cube in order to keep component prices reasonable. For precise positioning it is recommended that the beam-splitter is fixtured using a large leveling base (HP 10711A). These mounts allow for corrections in two directions. Pitch may be adjusted through several degrees about the axis of the mirror component by resetting the cradle position in the base, and yaw may be adjusted using the play in the elongated slots for securing the base. The base of the mount has an open aperture so the beam path may be directed through the base of the fixture. Beams should ONLY be deflected at right angles in each laser / detector assembly in order to avoid depolarization of the laser beams.

These components have been removed from various fixtures. They have been classified as second quality because of the missing labels as well as the rather crudely scribed schematics. All optical surfaces are free of blemishes and there are no gouges or distortions in any of the parts that would in any way impede accuracy of measurements. Cosmetically these components appear in very fine condition, although not new. Unlike new components, no hardware is included.

Location W7-A

Photo set 503.

BMI Surplus, Inc. is your #1 resource for new, pre-owned, recycled, refurbished & used optics, optical tables, laser tables, vibration isolation systems, legs and bases & optical support & optical accessories. We will work with you individually to find the perfect set up for your application. Shop our Optical Tables for the most competitive optical table price. Buy online or give us a call at 781-871-8868.We have experienced customer service representatives standing by ready to help you!
**Shipping, Handling & Freight fees are dependent on your location. We will provide a freight quote to meet your individual needs and work with you if you prefer to use your own carrier. We have 30 years of experience shipping sensitive scientific instruments & industrial equipment!

Don’t see what you are looking for? Use our orange search box on the top right hand corner of this page to customize your search.
***MPN HP 10702A, opt. 001
***OEM Hewlett Packard ( HP ) / Agilent
***SKU*** DP071

Burleigh Tunable Etalon
Telecentric/Collimated Optical System
Fiber/Telecom

-1.064 Micron
-2 GHz Free Spectal Range
-5mm Travel
-5mm CA
-1.25″ OD
***MPN
***OEM Burleigh
***SKU*** 6591