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Optoscribe now sampling OptoCplrLT™ Fiber-to-SiPh PIC coupling solution

OptoCplrLT™ with fiber assembly, coupling to SiPh grating couplers.

Livingston, UK – 31 August 2021 – Optoscribe Ltd, a world-leading supplier of 3D glass-based integrated photonics components, is now sampling OptoCplrLT™, its monolithic glass chip for low-loss coupling to silicon photonics (SiPh) grating couplers. 

Created using Optoscribe’s proprietary high-speed laser writing technique, OptoCplrLT™ is designed to overcome fiber-to-SiPh photonic integrated circuit (PIC) coupling challenges to enable high volume automated assembly and help drive down costs. 

Optoscribe’s OptoCplrLT™ uses low-loss light turning curved mirrors, which are formed in the glass, to direct the light to or from the SiPh grating couplers. This prevents the need for bend-tolerant fiber solutions, which are often expensive, challenging to manufacture and have some significant limitations in size and profile. 

OptoCplrLT™ has a low-profile interface, ~1mm device height and ~1.5mm with cap, which allows compact interface layouts that alleviate packaging constraints and helps address footprint challenges. Optoscribe’s solution is also compatible with industry-standard materials and processes; for example, the glass chip has a coefficient of thermal expansion matched to the silicon chip, helping to maximize performance. 

Russell Childs, CEO of Optoscribe, said “We are pleased to announce that we are now sampling OptoCplrLT™, which offers data center operators, transceiver manufacturers and optical component suppliers an innovative solution to help address fiber-to-SiPh PIC coupling challenges and help overcome SiPh transceiver packaging and integration hurdles, while meeting market demands of performance, cost and volume.”

For more information about OptoCplrLT™ and Optoscribe’s full range of solutions, please visit 


Image caption: OptoCplrLT™ with fiber assembly, coupling to SiPh grating couplers.


About Optoscribe Limited 

Optoscribe designs and manufactures 3D glass-based optical components for the telecommunications and data communications markets. Using its innovative laser direct-write technology, Optoscribe’s bespoke solutions address market challenges such as bandwidth, speed, density and channel count.

Optoscribe’s product portfolio includes precision fiber alignment arrays, fiber-to-fiber interconnects, multicore fiber fanouts, photonic lanterns, transceiver photonic integration platforms, SiPh coupling solutions, and Optical Sub-Assemblies.

For more information, visit:


Optoscribe media contact:

Laura Moore

Tel: +44 (0)1506 536000

Direct: +44 (0)1506 536004





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