Johan Holm has received the DOPS prize from the Danish Optical Society for developing Ibsen Photonic's polarization-independent fused-silica telecom gratings. Ibsen Photonics is a Farum, Denmark-based maker of phase masks and transmission gratings for the telecom, sensing and laser markets. The DOPS prize is an annual award given to an individual whose contribution to the Danish optics field has been of "unique quality and importance." The award was presented to Holm for his work since 2000 in connection with the development and commercialization of Ibsen's PING gratings, used primarily in telecom ROADM/WSS modules. The gratings offer high efficiency and low PDL over a very broad bandwidth with unique thermal and environmental stability due to their fused-silica nature. Ibsen said it has incorporated the gratings into its I-MON FBG sensor system interrogation monitors for compact, high-resolution narrow-band spectrometers.