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Silicon Photonics

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Entries in liquid crystal on silicon (3)


Adding an extra dimension to ROADM designs  

U.K. start-up ROADMap Systems, a developer of wavelength-selective switch technology, has completed a second round of funding. The amount is undisclosed but the start-up is believed to have raised several million dollars to date.

Karl HeeksThe company will use the funding to develop a prototype of its two-dimensional (2D) optical beam-steering technique to integrate 24 wavelength-selective switches (WSSes) within a single platform.

The WSS is a key building block used within reconfigurable optical add-drop multiplexers (ROADMs).

The company’s WSS technology uses liquid crystal on silicon (LCOS) technology, the basis of existing WSS designs from the likes of Finisar and Lumentum. However, the start-up has developed a way to steer beams in 2D whereas current WSSes operate in a single dimension only.

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ECOC 2012 summary - Part 2: Finisar

Gazettabyte completes its summary of key optical announcements at the recent ECOC show held in Amsterdam. In Part 2, Finisar's announcements are detailed.

Part 2


"The general thought with system vendors is that the more they can shrink the in-line equipment into a fewer number of slots, the more slots they have open and available for revenue-generating transceiver and transponder cards"

Rafik Ward, Finisar

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ROADMs: core role, modest return for component players

Next-generation reconfigurable optical add/ drop multiplexers (ROADMs) will perform an important role in simplifying network operation but optical component vendors making the core component  - the wavelength-selective switch (WSS) - on which such ROADMs will be based should expect a limited return for their efforts.


"[Component suppliers] are going to be under extreme constraints on pricing and cost"

Sterling Perrin, Heavy Reading





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