OpenLight unveils 224G InP-based modulator

OpenLight demonstrated a 224G InP-based modulator available for Tower's PH18DA platform for datacom applications supporting 224G per wavelengthThe new 224G modulator is integrated on a demonstration PIC with a heterogeneous integrated laser and other required silicon photonics components to enable a full transmitter. "This new modulator doubles the speed of every PIC," said Dr. Adam Carter, Chief Executive Officer at OpenLight. "For instance,...

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Open XR Forum completes test of Point-to-Point 400G Pluggable Optics

The Open XR Forum demonstrated long-haul point-to-point transmission between QSFP56-DD coherent transceivers over 1,400 km at 400 Gb/s using 16QAM modulation, as well as error-free performance at 300 Gb/s using 8QAM modulation over a span of 2,495 km. The testing was conducted in conjunction with founding member Lumen Technologies using Infinera's ICE-XR 400G QSFP56-DD transceivers operating in third-party routers and transmitting over third-party...

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NTT Electronics ships 400G coherent co-package device for 400ZR/ZR+

NTT Electronics is now sampling its 400G coherent co-packaged devic for 400ZR/ZR+ optical transceivers. The new ExaLIGHT 400 consists of integrated dies of NTT Electronics’ ExaSPEED 400-R DSP and Silicon photonics based Coherent Optical Sub-Assembly (COSA 2.0) in a single package, which can be controlled by firmware for optimal performance. The package is non-hermetic and TEC-free and utilizes reflowable solder in BGA configuration to achieve...

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Eoptolink launches 800G, 400G and 100G Multimode BIDI transceivers

Eoptolink Technology introduced multimode BIDI transceivers: 800G SR4.2, 400G SR4.2 and 100G SR1.2.  The 800G and 400G versions are available in both OSFP and QSFP-DD800 form factors. The 800G SR4.2 transceiver uses 850nm and 910nm VCSELs with 106Gbps wavelengths. Two wavelengths are combined bidirectionally onto a single fiber. The 800G SR4.2 uses 4+4 fibers in an MPO-12 connector interface. This enables a smooth upgrade path from 400G...

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MACOM acquiresL inearizer Communications Group

MACOM Technology Solutions has acquired Linearizer Communications Group for approximately $49 million.Linearizer, which is based in Hamilton, New Jersey and was founded in 1991 by Dr. Allen Katz, pecializes in non-linear microwave predistortion for use in terrestrial, avionic and space-based applications and high-performance microwave photonic solutions for use in the industrial and defense markets. The Linearizer team uses proprietary design and...

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OFS joins Terabit BiDi Multi-Source Agreement

OFS has joined the Terabit BiDi Multi-Source Agreement (MSA) group. The MSA recently announced the publication of release 1.0 of its optical specifications for 800 Gb/s and 1.6 Tb/s optical interfaces over 70 meters of OM4 multimode fiber (MMF) and over 100m of OM5 multimode fiber. The MSA's specifications utilize the widely adopted dual wavelength bidirectional transmission technology. This provides an upgrade path to the large-scale deployed...

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Gigi Sohn drops bid for FCC commissioner seat

Over one year after being nominated by President Biden, Gigi Sohn formally withdrew from consideration as an FCC commissioner. The position requires U.S. Senate consent and despite three confirmation hearings, it did not appear likely that she could gain  approval. For now, the fifth seat at the FCC remains vacant.Biden nominates Jessica Rosenworcel and Gigi Sohn to FCCTuesday, October 26, 2021  FCC, People  President...

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Casela achieves record high-efficiency, high-power uncooled 1.31 um CW-DFB lasers

 Casela Technologies introduced its 1310nm band high-power, continuous-wave (CW) distributed feedback (DFB) lasers .Cáselas claims record high power conversion efficiency and optical powers for silicon photonics-based transceivers.Casela’s new 1 and 2 mm long DFB lasers achieve 125mW to 200mW optical power when uncooled and 300 to 400mW, respectively, when cooled, enabling the use of single laser for DR4 and DR8 transceivers. High optical powers...

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