Photonic Crystal Polarizing Optical Components

Ultra-thin waveplate for optical communications

It has insertion loss comparable to that of a quartz plate and can have multiple axial orientations on a single element.
Compact and free polarization control can be realized in optical transceivers, optical modulators, receivers, and wavelength selective switches (WSS) in digital coherent systems.

Specifications
Part Number	1535-1570nm
Retardation tolerance	90°±4.5° or 180°+/- 9°
Transmittance	98%≧
Thickness	～15μm
Diameter (effective area)	Customizable
Size	10mW / 100 μm2 @ λ=355nm (typical)

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Photonic Crystal Polarizing Optical Components

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Custom Polarizer & Phase Plates

Our products can be customized not only for the optical properties, but also for the shape and the spatial distribution of those properties. In particular, they can be made non-uniformly, having a segmented structure or a curved axis along the surface. Customization of the patterned polarizer/waveplate is welcome.

True Zero Order Waveplate/Ultra-Violet Polarizers

Photonic crystal waveplates are reliable and perfect zero-order waveplates with small incident angle dependence.For example, a zero-order half-wave plate made of quartz for a wavelength of 266 nm in the ultraviolet region would be about 11 μm thick, but a photonic crystal is deposited on a quartz plate, making it easy to handle.

Half-Mirror Polarizer for Laser Cavity

Reflectivity for each polarization can be tuned separately. As a half-mirror in a laser resonance cavity, the element is used to generate and select the output polarization of the laser. Because of its inorganic nature, the element can withstand very high optical power.