NEW YORK, March 5, 2026, 13:57 EST
- Coherent rolled out its CHR1074, a quad-channel TIA supporting 224Gbps per channel, targeting 800G and 1.6T optical transceivers.
- Coherent rolled out its WaveMaker 4000A test instrument, targeting Super C-band DWDM systems.
- Coherent is set to join the Bloomberg 500 index, with inclusion effective March 12, according to Bloomberg Indices.
Coherent Corp (COHR), the photonics components manufacturer out of Saxonburg, Pennsylvania, rolled out a 224-gigabit-per-second transimpedance amplifier on Wednesday—a receiver chip that targets high-speed optical links inside data centers. By Thursday afternoon, shares had slipped roughly 9%.
With AI training and inference ramping up, data-center operators are reworking how racks communicate—and scrutinizing the power each link uses in the process. The move to 800-gigabit and 1.6-terabit optical modules is fueling fierce competition for quicker components, whether it’s lasers, chips, or the gear used to test them.
When links slip into low-power states, these modules can get sluggish—especially once they need to snap back awake to handle bursts of traffic. Coherent is betting on quicker wake-up times and cutting down on that dead period, arguing it’s a way to keep latency in check as networks keep getting more dynamic.
The company is rolling out its CHR1074, a 224Gbps quad-channel transimpedance amplifier built for 800G and 1.6T transceivers. According to the company, the TIA snaps back to full performance in just 50 nanoseconds when a link goes active from idle. Samples are out now; broad release is penciled in for the end of next quarter. “AI-driven infrastructure is redefining performance and power requirements across the optical interconnect ecosystem,” said Beck Mason, executive vice president for semiconductor devices. GlobeNewswire
Coherent rolled out its WaveMaker 4000A, a programmable optical spectrum synthesizer targeting dense wavelength-division multiplexing—DWDM, the tech that lets multiple signals share one fibre via separate light colours. Customers can expect an eight-week lead time, according to the company. “The WaveMaker really helps to speed up system testing,” said Dr. Ralf Stolte, senior sales and marketing manager for optical communications test gear. GlobeNewswire
Both products are set to debut at the Optical Fiber Communication Conference and Exhibition (OFC) in Los Angeles, running March 15–19. Coherent noted that CTO Julie Eng will headline a plenary session, while other company execs are tapped for panels on scaling optical links for AI and cloud infrastructure.
This week, Coherent disclosed in an SEC filing that it offloaded 7,788,161 shares to Nvidia for $256.80 apiece, netting $2 billion under a securities purchase agreement. Nvidia’s Jensen Huang described the partnership as breaking ground in “next-generation silicon photonics.” Coherent chief Jim Anderson called the deepened ties with NVIDIA a point of pride after two decades of collaboration. SEC
Nvidia announced plans to put $2 billion apiece into Coherent and Lumentum, both optical-components firms. The deals come with purchase agreements and rights to advanced laser and optical networking tech. Coherent jumped 9%, Lumentum climbed 5% on Monday following the news. Marvell, for its part, has moved into photonics too, picking up Celestial AI last year in a $3.25 billion deal.
Coherent is set to join the Bloomberg 500 index as part of its March reshuffling, Bloomberg Indices announced, with changes taking effect prior to the market open on March 12. Lumentum and Ciena are also making the cut this time, along with several other names—a detail not lost on investors monitoring benchmark adjustments.
Still, rolling out new products doesn’t lock in design wins. Transceiver companies tend to spend quarters qualifying receiver chips and vetting test gear. Any slip on power, packaging, or signal integrity? That can steer orders to a competitor, or just slow down adoption.
Coherent shares dropped roughly 9% Thursday. Lumentum slid around 8%. Broadcom moved the other way, climbing over 3%. “Our visibility in 2027 has dramatically improved,” Broadcom CEO Hock Tan told analysts after results, as the company projected AI chip revenue topping $100 billion in 2027. Reuters
