+44 (0)24 7671 8970
More publications     •     Advertise with us     •     Contact us
News Article

Coherent to introduce VCSEL and photodiode arrays for 800G


VCSELs amongst first to be manufactured on a vertically integrated 6-inch GaAs technology

Coherent Corp is introducing 100G PAM4 VCSEL and photodiode (PD) arrays for 800G short-reach datacom pluggable transceivers and active optical cables (AOCs.)

Coherent has introduced eight-element VCSEL arrays, where each VCSEL can be modulated at 100 Gbps using a four-level pulse amplitude modulation (PAM4) format. The eight-element arrays enable 800 Gbps transmission in short-reach transceivers and AOCs. The VCSEL arrays can be paired with Coherent’s new 100 Gbps PAM4 high-speed PD arrays.

“These high-speed datacom VCSELs represent the state of the art in the technology. They are among the few commercially available and, to our knowledge, the only ones to be manufactured on a vertically integrated 6-inch GaAs technology platform,” said Karlheinz Gulden, SVP, Laser Components and Subsystems Business Unit.

“The VCSEL and PD array pairs benefit from the decades of proven reliability going back to the 1990s, when VCSELs were first commercially introduced for datacom links. This latest breakthrough in VCSEL speed is another great opportunity for our customers to partner with the pioneers, enable short-reach transceivers and AOCs operating at 100 Gbps per lane, and serve the rapidly growing market demand,” he added.

The VCSEL arrays are available at 850 nm, 880 nm, 910 nm, and 940 nm, enabling various applications, including bidirectional operation on one fiber to minimise cabling costs in datacenters. The VCSEL and PD arrays enable lower energy consumption per bit, a growing requirement for the future sustainability of datacenters.

Coherent will exhibit at OFC 2023 in San Diego, March 7-9 2023.

EMCORE announces integration of PICs into its products
Scottish photonics consortium wins £4.7m in UKRI funding
Yuanjie Semiconductor to supply lasers to POET
Fraunhofer IPMS announces government funding for quantum photonic chip
POET Technologies partners with Yuanjie Semiconductor Technology
SiLC announces silicon photonics systems for machine vision
Scientists develop novel optical modulators for integrated photonics
Scientists report integrated photodiodes on TFLN
Coherent wins award for innovative photonics product
FBH to present quantum technology developments at EQTC 2023
Skorpios and FormericaOE demonstrate PICs in 800G optical transceivers
EFFECT Photonics verifies fully integrated InP PIC
NASA awards grant for silicon photonics project
OpenLight and Spark Photonics partner on PIC design services
DustPhotonics announces 800G chip for hyperscale data centres and AI
Lightwave Logic Receives Industry Innovation Award
Imec announces SiGe BiCMOS optical receiver
SiFotonics announces silicon photonics 800G LPO solutions
Rockley Photonics progresses noninvasive biomarker monitoring
MantiSpectra secures €4 million for miniaturised spectrometers
Sivers to demo next-gen laser arrays at ECOC 2023
ASMPT AMICRA and Teramount collaborate on silicon photonics packaging
Quantum Computing Inc. selects Arizona site for photonic chip foundry
German government to fund ams OSRAM optoelectronic semiconductor development
Luceda Photonics introduces new PIC design software
Vodafone explores silicon photonics for future mobile networks
Coherent introduces 1200 mW pump laser module
Photonics startups invited to apply to Luminate NY accelerator
New tool could improve lithography for smaller, faster chips
InP-based lasers surpass 2.2 mm
Indie Semiconductor buys Exalos AG
New technique controls direction and wavelength of emitted heat

Search the news archive

To close this popup you can press escape or click the close icon.
Register - Step 1

You may choose to subscribe to the PIC Magazine, the PIC Newsletter, or both. You may also request additional information if required, before submitting your application.

Please subscribe me to:


You chose the industry type of "Other"

Please enter the industry that you work in:
Please enter the industry that you work in: