📦 For purchasing, use the RP Photonics Buyer's Guide for vertical cavity surface-emitting lasers. It provides an expert-curated supplier directory, buyer-focused technical background information, and structured selection criteria to support professional procurement decisions. This paper is an extended version of our conference paper “200Gb/s PAM4 oxide VCSEL development progress at Broadcom,” presented at the Vertical-Cavity Surface-Emitting Lasers XXIX, 1138402 (2025), San Francisco, CA, USA, 29–30 January 2025. RP Photonics offers. PITTSBURGH, March 25, 2024 (GLOBE NEWSWIRE) – Coherent Corp. (NYSE: COHR), a global leader in materials, networking, and lasers, announced today that it has made a significant breakthrough in improving the bandwidth of its vertical-cavity surface-emitting laser (VCSEL), paving the way for use in. In this paper, we present the development and performance of a 940nm multimode VCSEL with 3-dB small-signal modulation bandwidth exceeding 25GHz over temperature and relative intensity noise (RIN) below -145dB/Hz, suitable for 100Gb/s per lane data transmission. VCSEL-based transceivers have established dominance in data center environments due to their exceptional cost-effectiveness and low power consumption for short-reach.