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Fiber-to-SiPh Coupling - OptoCplrLT™

A perfect storm of factors is driving data center operators and transceiver
manufacturers to search for novel solutions that can address fiber-to-SiPh chip
coupling challenges, to enable high-volume automated assembly and to drive down
costs.

Using a proprietary high-speed laser writing technique, Optoscribe has produced
a monolithic glass chip – OptoCplrLT™ – for low-loss coupling to SiPh grating
couplers. Optoscribe’s solution uses low-loss light turning curved mirrors
formed in the glass, instead of bent fiber arrays, to direct the light to or
from the SiPh grating couplers. The curved mirrors simultaneously redirect and
focus the light for optimal coupling to and from the Photonic Integrated Circuit
(PIC) grating couplers. This prevents the need for bend-tolerant fiber
solutions, which are often expensive, challenging and have some significant
limitations in size and profile.

OptoCplrLT™ has a low-profile interface by design, ~1mm device height and ~1.5mm
with cap, which allows compact interface layouts that alleviate packaging
constraints. 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, thereby maximising performance.




OPTOCPLRLT™ SPECIFICATIONS

Parameter Value Notes Operating wavelength 1280nm – 1625nm   Insertion loss
assembled <0.5dB    Number of channels  2, 4, 8  Other channel count
configurations are available on request  Channel pitch 250μm Other channel pitch
configurations are available on request  Optical output angle 8 degrees to
normal  Other angle options are available on request  Working distance of focal
plane 24μm (SiPh) Other working distances (0 - 30μm+) are available on request 
OptoCplrLT™ height ~1mm ~1.5mm with cap Glass substrate material BF33  CTE 3.25
ppm/K Fiber type G657.A1 / G652  





 



 

Dimension Distance (mm) D1 1.4 D2 2.6 D3 0.67 D4 0.515 D5 0.105 D6 1.0 Dg 0.024
ϑ 8°

Schematic diagram with typical dimensions

For further details, please contact sales@optoscribe.com 

Download Data Sheet: OptoCplrLT™ Fiber-to-SiPh Coupling

View Whitepaper: A NOVEL SOLUTION FOR FIBER-TO-SiPh COUPLING

VIEW WHITEPAPER: OptoCplrLT™: OPTIMIZED MECHANICAL INTEGRITY TO PERFORM IN
INDUSTRIAL WORKING TEMPERATURE ENVIRONMENTS



Products

 * Fiber-to-SiPh Coupling - OptoCplrLT™
 * Precision Fiber Alignment Arrays - OptoArray™
 * Fiber to Fiber Interconnects
 * Multicore fiber fanouts – OptoFan™
 * Photonic Lanterns - OptoLantern™
 * Transceiver Photonic Integration
 * Optical Sub-Assembly (OSA) Platform

OPTOCPLRLT™
KEY ADVANTAGES

• Simple single-stage passive fiber assembly

• Uses low-loss light turning curved mirrors which are formed in the glass

• Low profile interface; ~1mm device height and ~1.5mm with cap, allowing
compact interface layouts that alleviate packaging constraints

• Replaces difficult to assemble and expensive bent fiber arrays


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