Multi-waveguide layer H-tree distribution device

Details Multi-waveguide layer H-tree distribution device Multi-waveguide layer H-tree distribution device

2005-04-05

2005-04-05

Palmer, Phan T. H. (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling structure

C385S014000, C385S124000

Reexamination Certificate

active

06876794

ABSTRACT:
An optical network is formed of multiple H-tree distribution devices, separated into different waveguide layers. The optical network receives an input optical signal, such as an optical clock signal, and makes duplicate copies of that input signal. The duplicate copies are routed through the connected H-tree distribution devices, which are arranged to produce identical, synchronized copies of the clock signal. The network can take the form of a 1×2Ndevice, where 2Nrepresents the number of these output signals. The H-tree distribution devices forming the network are of varying size and may be formed in different waveguide layers with different index of refraction differentials between the H-tree devices and surrounding claddings. In some forms, the optical network is integrated with optical-to-electrical converters, i.e., photodetectors, which take the optical output signals and convert them to synchronized electrical signals that may be communicated to digital circuits.

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