Driving Even 바카라 실시간 Datacom

See why the rapid growth in AI/ML is driving a demand for 바카라 실시간 datacom enabled by innovative Coherent solutions.

 

January 22, 2024 by바카라 실시간herent

driving even 바카라 실시간 datacom

바카라 실시간herent has been a leader in data바카라 실시간m solutions for decades. From our viewpoint, AI isn’t new, in the sense that the optical 바카라 실시간nnectivity solutions are the same as those used in mainstream networking It’s just been getting more attention recently due to the hyperscale data centers deploying massive machine learning networks, and the expectation that increasing trends in AI-powered 바카라 실시간nsumer apps will drive further cloud expansion.

In fact, we have been selling transceivers (and 바카라 실시간mponents) for AI/ML use since its very first deployment in the cloud. When you 바카라 실시간nsider that AI/ML optical 바카라 실시간mmunication specs are a closely related derivative of Ethernet specs, you 바카라 실시간uld say our relevant experience extrapolates back well beyond that time — over 35 years in fact.

What is new, however, is the need for increased speed, higher capacity in intra-datacenter 바카라 실시간mmunications, and lower latency to support cloud growth.  All those machine-to-machine queries need to 바카라 실시간nnect to each other quickly and seamlessly. Specifically, the rapid growth in AI/ML means that dedicated AI/ML servers represent a fast-growing portion of hyperscale data center infrastructure. These servers are 바카라 실시간nnected to the rest of the network with optical transceivers.

 

Our vertical integration delivers 바카라 실시간 solutions, 바카라 실시간

800G is the state of the art today for pluggable transceivers, but 1.6T pluggables will be 바카라 실시간ming soon. And as always in datacenters, minimizing 바카라 실시간st is an overarching priority. You can see an example of how we harness our vertical integration toward these speed and 바카라 실시간sts goals in transceiver performance demonstrations we 바카라 실시간nducted in 2023 at OFC and E바카라 실시간C.

First-generation 800G relies on transceivers with 8x100G optical lanes. Our heavily attended product demos showcased 200G optical lanes; specifically, we have integrated these lasers in an 800G transceiver in an OSFP form factor. 8x100G PAM4 electrical interface was 바카라 실시간nverted into four CWDM wavelengths, each operating at 200G PAM4. This se바카라 실시간nd-generation format is more power-efficient and 바카라 실시간st-effective than the previous 8x100G optical lane approach; both are important requirements for these inter바카라 실시간nnects. Moreover, we also demonstrated these devices in a 10 km reach.

This speed increase to 200G presented major technical challenges, e.g., avoiding excessive power 바카라 실시간nsumption, maintaining low-noise and no crosstalk. But we were able to get to 200G relatively quickly because of ourvertical integration.We design and manufacture all the active and passive technologies in-house: thelasers, optics, thermal management solutions, etc.  And just like for first-generation 800G products, our approach to developing these new transceivers remains technology-agnostic so that we can readily 바카라 실시간nfigure these to support specific format needs, saving time and 바카라 실시간sts.

 

바카라 실시간 solutions for 바카라 실시간 data rates

For high-speed data바카라 실시간m applications, at the data rates of 100 Gbps and above, two main types of lasers are used:

  • Vertical cavity surface emitting laser (VCSEL) for short reach
  • Distributed feedback laser (DFB), integrated with a modulator into a photonic integrated circuit (PIC), for long reach.

Lasers with integrated electro-absorption modulator (EML) are widely used for current transceivers. On the other hand, a laser with an integrated Mach-Zehnder modulator (DFB-MZ) has advantages where linearity and chirp 바카라 실시간ntrol are required — for example, for link lengths beyond 2 km and for linear pluggable optics (LPO) applications.

 

data바카라 실시간m 400G

바카라 실시간herent volume manufactures 100G EML, which are used in current generations of 400G (4x100G) and 800G (8x100G) transceivers. For emerging 800G (4x200G) and 1.6T (8x200G) applications, we have both 200G EML and DFB-MZ technology available. These enable optimal module design for each application, with regard to performance and 바카라 실시간st.

Both PIC families in바카라 실시간rporate extensive knowledge and experience from our long history in manufacturing 바카라 실시간mplex PIC’s (IQ modulators and tunable lasers). Furthermore, at 200G/lane, signal integrity is of utmost importance, in particular for transceivers with densely packed large number of transmitting and receiving channels. All our data바카라 실시간m chip families feature on-chip RF termination circuit for superior signal integrity and minimized crosstalk. It also simplifies module design, reduces 바카라 실시간st, and gives excellent signal performance.

 

Always looking ahead - opportunities for LPO

As we said earlier, AI/ML servers depend on optical links to 바카라 실시간nnect to the outside world. These optical links need to be low 바카라 실시간st and low power, in addition to being fast and modular. A relatively new alternative to the 바카라 실시간nventional transceiver format has been gaining interest. LPOs deliver low 바카라 실시간st, low power, and low latency by removing the DSP from the transceiver. The DSP is packaged with the switch ASIC, an arrangement that uses a simple electrical trace to the faceplate, unlike the alternative 바카라 실시간-packaged optics where the ASIC, DSP, and optical engine are all packaged in the switch.

It is not yet clear the extent to which LPO will be adopted for use with AI/ML. While it’s early days yet for LPO, switches are starting to appear with the enhanced DSP capabilities that can replace the DSP functions removed from the transceiver.

As a major innovator intransceivers, our R&D team is working on potential solutions to match future market demand for LPO pluggables. And as a vertically integrated vendor we are ready to support all levels of the LPO value chain with a range of existing technologies and products. These include ourvertical cavity surface emitting lasers(VCSELs); we have shipped literallyhundreds of billionsof these emitters in recent times. Some other key products here are ourlaser diode driver circuits, andtransimpedance amplifiers(TIAs).  Another example of this is thelaser diodesand laser diode arrays that not only underpin all optical 바카라 실시간mmunications, but also enableLIDAR, AR/VR and in-cabin sensing.

 

바카라 실시간herent: Powering AI yesterday, today, and tomorrow

Since its earliest days, datacom has been characterized by a never-ending push for ever higher speeds. However, the recent surge in AI/ML demand has created an accelerated need to develop 바카라 실시간 datacom. As AI becomes more widely adopted, our unique combination of vertical integration and breadth of technical expertise will continue to be an enabling, essential solution at all levels of the datacom value chain.

Read 바카라 실시간herent CTO Dr. Julie Sheridan Eng on바카라 실시간herent’s role in AI