Polyimide Waveplate
Polyimide Waveplate

Thin waveplate makes it possible to have excellent high density packaging and small insertion loss for PLC.

Benefits / Features

Made from polyimide, which has excellent heat and environmental resistance and is well suited to device mounting.


  • Low insertion loss
  • Heat resistance up to soldering temperature
  • Any size or shape
  • Suitable for optical waveguides
Polarization mode converter with Polyimide Half Waveplate
Circular polarizer with Polyimide Quarter Waveplate


Eliminates PLC polarization dependency

Converts TE(TM) mode to TM(TE) mode. Eliminates polarization dependency of AWG* and directional couplers.

* AWG: Arrayed-waveguide grating 

Optimal for over 100 Gbps high-speed phase modulation devices such as DP-QPSK and for AWG use.

Example of PBS Optical Circuit Application

Many small waveplates with defferent direction of light axes can be inserted between extremely narrow gaps on integrated light circuits, shown in an image.

Application Examples of Wavelength Selective Switch at Front-End

Application examples of Wavelength Selective Switch (WSS) at Front-End

Any Shapes  - Curved or/with Holes -

Any shapes waveplates

Configuration Image

Configuration of a polarization insensitive coupler type 1.3/1.55μm Multiplexer.
Fig.2 Insertion loss spectra (a) before and (b) after inserting AT-HWPinto the waveguide gap.
Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, J.LightwaveTechnol. 15, 1947 (1997).


Consultation is available to customize size, wavelength and thickness.
Retardation 1/2λ 1/4λ
Optical Extinction Ratio ≥25 dB (@Wavelength:1.55 µm) =0±1dB (@Wavelength:1.55 µm)
Optical Axis Specified Axis ± 1°
Thickness 15 ± 2 µm
Size 0.25×0.25 ~3×5 ±0.05 mm The shape and size is negotiable.
Measured by NTT Advanced Technology Corp.

* Designs and specifications are subject to change without notice.


Waveplate HWP 0.7MB
Waveplate QWP 0.7MB

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