SOURCES SOUGHT
66 -- Optical Component(s) for the YAG Laser
- Notice Date
- 10/5/2011
- Notice Type
- Sources Sought
- Contracting Office
- US Army, Army Contracting Command, ACC New Jersey Contracting Center, Picatinny Arsenal, New Jersey 07806-5000
- ZIP Code
- 07806-5000
- Solicitation Number
- W15QKN-12-X-D002
- Response Due
- 10/24/2011
- Archive Date
- 11/23/2011
- Point of Contact
- Katelyn Warren, Contract Specialist, 518-266-5088
- E-Mail Address
-
Katelyn Warren
(katelyn.a.warren@us.army.mil)
- Small Business Set-Aside
- N/A
- Description
- Subject: Optical Component(s) for the YAG Laser The US Army Armament Research and Development Command (ARDEC) Benet Laboratories, located at Watervliet Arsenal, Watervliet, New York is seeking firms capable of a technical solution for one or both of the requirements described below. The requirement entails the delivery of a uniform beam of a pulsed Nd:YAG laser onto a target to achieve a desired range of fluences (fluence = pulse energy per unit area). The output from the laser is non-uniform, both due to hot spots on the beam and due to intensity rings associated with the laser operating in a multi-mode configuration to maximize energy. The laser produces 5 ns pulses in a circular spot that is approximately 11 mm in diameter. The laser is operated at the second (532 nm) or third (355 nm) harmonics of the fundamental YAG output at 1064 nm. The pulse energy is 800 mJ at 532 nm, and 500 mJ at 355 nm. An optical element or system of components is sought that can accomplish the following two objectives: (a) Transform the incident beam into a square or circular beam at the target, with a top-hat intensity profile, with a uniformity of 5% or less. (b) Adjust the fluence of the beam on the target, either by changing the spot size or attenuating the energy in the beam at constant spot size (preferred). Desired fluence range shall cover at least 0.1 3 J/cm2. **A response may address either or both of the objectives. The solution must be compatible with the optical arrangement depicted in Attachment 1. The beam travels horizontally on an optical table, and is turned down onto a target which routinely sits in a vacuum chamber. The height of the beam relative to the table is 206 mm. The front surface of the coated window into the chamber is approximately 180 mm from the surface of the optical table. The target is approximately 120 mm from the surface of the table. The window is fused silica, AR-coated for 355 nm and 532 nm, with a damage threshold of approximately 5 J/cm2, which should not be exceeded by the beam in traversal to the target. The turning mirror will be a 25.4 mm or 50.8 mm fused silica mirror, AR-coated for either 355 nm or 532 nm, with a damage threshold of 5 J/cm2. Optical components may be placed anywhere within the beam path, but the damage threshold of these two optical components must not be exceeded. The vacuum chamber sits on a moving stage with a throw of 150 mm in all in-plane directions. Thus, the objective solution should recommend a mechanism for holding the optical system or components given that the stage will likely need to move under the optics themselves. Several beam input scenarios are contemplated: 1. The direct output from the laser at 532 nm.2. The output from the laser when passed through an Engineered Diffuser (e.g. ThorLabs P/N ED1-S20-POG-SP). This output scenario results in a beam that is highly divergent, but that can be collimated.3. The output of the laser after the light is passed through a 400 micron diameter pinhole placed at the focus of a lens. This removes the rings of the direct output beam, but still retains some inhomogeneity. Possible solutions for (a) could include a micro-lens array, an absorptive diffuser, a diffractive diffuser, or any number of other approaches. Possible solutions for (b) could include a telescope or a continuously variable attenuator. Attachments: Optical arrangement depicted in Attachment 1.Representative images for these three scenarios are provided in Attachment 2. Firms/companies are invited to indicate their capabilities by providing specifications, brochures, manuals, reports, demonstration video and other technical data. All data should be sent at no cost to the US Government by October 24, 2011 to the US Army ARDEC. ATTN: Katelyn Warren email: Katelyn.a.warren@us.army.mil. In addition, please provide the firms name and address, point of contact with telephone number and email address, and size of business (small/large). The Government will accept written questions by email. This is a market survey to be used for informational planning purposes only and shall not be construed as a Request for Proposal (RFP), nor is the Government obligated to issue an RFP. The US Government does not intend to award a contract on the basis of this market survey or otherwise pay for information solicited. The government is not obligated to notify respondents of the results of this survey.
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- Record
- SN02603140-W 20111007/111005234942-bc2c2fc0d5bfc2f770008830ac27559e (fbodaily.com)
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