The development of a breadboard Cryogenic Optical Delay Line for DARWIN
conference paper
TNO has developed a compact BreadBoard (BB) cryogenic Optical Delay Line (ODL) for use in future space interferometry missions such as ESA's Darwin and NASA's TPF-I. The breadboard delay line is representative of a flight mechanism. The optical design is a two-mirror cat's-eye. A linear guiding system based on magnetic bearings provides frictionless and wear free operation with zero hysteresis. The delay line has a voice coil actuator for single stage Optical Path Difference (OPD) control. The verification program, including functional testing at 40K, has been completed succesfully.
Topics
TNO Identifier
240465
ISSN
0277786X
ISBN
9780819468406
Article nr.
No.: 66920A
Source title
12th Cryogenic Optical Systems and Instrumentation Conference, 26-27 August 2007, San Diego, CA, USA