Replication of holographic lens used as multiplexer/demultiplexer in fiber optic communication

Xuechang Ren; Shou Liu; Xiangsu Zhang; Sensen Li

doi:10.1117/12.757760

4 January 2008 Replication of holographic lens used as multiplexer/demultiplexer in fiber optic communication

Xuechang Ren, Shou Liu, Xiangsu Zhang, Sensen Li

Proceedings Volume 6832, Holography and Diffractive Optics III; 68322M (2008) https://doi.org/10.1117/12.757760
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Hot embossing has become a key technique in the replication of microstructures. In particular, the hot embossing of diffractive gratings into thermoplastic has been widely used in the mass production of holograms. The process involves the transfer of a surface relief structure from a plate to a substrate by high temperature and pressure applied to an intermediate film. So in this paper a novel printing process for replication of holographic lens used as multiplexer/demultiplexer has been demonstrated. Advantages of this technique are the low cost and ease of processing. Some analysis indicates that for WDM in fiber communication, the thermoplastic polycarbonate is a good choice. In the primary experiments, the optimum temperature and force for embossing were 130 degrees and 5Mpa. The optimal thickness of a nickel shim used in the mesne process was established to be 60 micron. The lens arrays were uniformly embossed over the entire area of the thermoplastic which was typically 8×8. Minimum diffraction efficiency of the embossed lens in thermoplastic layer is about 50% (-3dB). High quality replicas of device have been fabricated using this process. Printing via an embossing process offers the possibility of mass production of demultiplexer easily and cheaply compared with conventional demultiplexer.

Citation Download Citation

Xuechang Ren, Shou Liu, Xiangsu Zhang, and Sensen Li "Replication of holographic lens used as multiplexer/demultiplexer in fiber optic communication", Proc. SPIE 6832, Holography and Diffractive Optics III, 68322M (4 January 2008); https://doi.org/10.1117/12.757760

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