Abstract

The transmission capacity of fiber communication networks is enhanced by usage of dense wavelength division multiplexing (WDM). This technique requires wavelength filters for multiplexing of the channels. We report on the realization of a multiplexer device based on superimposed volume-phase gratings in a single lithium niobate crystal. The gratings are recorded through the photorefractive effect by interference of two green laser beams. Thermal fixing is employed to increase the lifetime of the gratings. Each grating diffracts light of a certain WDM channel (wavelengths of ∼1500 nm). Simultaneous multiplexing of many channels is achieved by suitable arrangement of the gratings in the crystal. We present the basic concept of this technology as well as recent advances: (1) refined experimental methods about tailored recording of many-channel multiplexers, (2) characterization of the multiplexers for up to sixteen WDM channels (1-dB bandwidth up to 0.1 nm, channel spacing down to 0.4 nm), and (3) construction of a two-channel multiplexer device.

© 2003 Optical Society of America

Full Article  |  PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription