Product, Test and Space Qualifications

HORIBA Jobin Yvon’s underground grating labs provide the necessary environmental stability required to mechanically rule and holographically record the highest-specification diffraction gratings.

Our ruling engines, lasers, collimators, optical components, and chemical processing equipment are housed in clean rooms throughout the facility.

Coating and chemical operations are performed in our own processing laboratory. The lab is geared to accommodate all the company’s replication and deposition requirements with equipment including fully-automatic high-vacuum evaporation systems.

All equipment involved in handling and processing of master gratings are operated in different cleanrooms down to class 100.

Space Qualification

LDEF NASA Experiment

Space qualification was achieved for HORIBA Jobin Yvon´s ruled and holographic gratings (masters and replicas) by the French CNES as early as 1971 and 1972, when we produced gratings for the D2B satellite.

HORIBA Jobin Yvon ruled and holographic gratings were aboard the LDEF (Long Term Exposure Facility) satellite, which stayed in space for 69 months before retrieval by the Space Shuttle. Extended space vacuum experiments (34000 orbits, with thermal cycling each orbit) demonstrated that HORIBA Jobin Yvon´s ruled and holographic gratings (masters and replicas) maintained wavefront quality, stray light levels, and absolute efficiency under harsh space conditions.