Financial Data and Key Metrics Changes - The fourth quarter revenue was $480.7 million, with non-GAAP EPS of $0.88, both exceeding the high end of revised guidance [18] - Fiscal year 2025 net revenue was $1.65 billion, up 21% from fiscal year 2024 [20] - Non-GAAP gross margin for the fourth quarter was 37.8%, up 260 basis points sequentially and up 1,000 basis points year on year [18] - Non-GAAP operating margin for the fourth quarter was 15%, up 420 basis points sequentially and over 2,000 basis points year on year [18] Business Line Data and Key Metrics Changes - Cloud and networking segment revenue for Q4 was $424.1 million, increasing 16% sequentially and 67% year on year [21] - Industrial tech segment revenue was $56.6 million, down 6% sequentially but up 6% year on year [22] - Cloud modules revenue grew by 50% quarter over quarter, contributing significantly to sequential revenue growth [12] Market Data and Key Metrics Changes - The demand for optical hardware and bandwidth is growing dramatically due to the central role of AI in customer business strategies [6][7] - The company expects to surpass $600 million in quarterly revenue by June 2026 or earlier, driven by strong growth in cloud and networking [9] Company Strategy and Development Direction - The company is focused on three significant areas for long-term growth: cloud modules, optical circuit switching (OCS), and co-packaged optics (CPO) [12] - The company is investing in manufacturing capacity to support cloud customers and is expanding its in-house OCS manufacturing capacity to meet high demand [13][14] - The company aims to maintain a competitive advantage through innovation in optical technologies and strategic partnerships with hyperscalers [7][14] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the company's ability to deliver continued top-line growth and margin expansion, driven by the rapid adoption of AI [17] - The company anticipates 2026 to be a breakout year for laser chip sales, particularly for 100 and 200 gig lane speeds [11] - Management noted that the tariff situation is fluid but believes their products are exempt from potential semiconductor tariffs [54] Other Important Information - The company is transitioning from three-inch to four-inch wafers to increase capacity and is also looking to expand to six-inch wafers in the future [104][109] - The company has received a significant order for 200 gig line speed EML chips, expected to be filled in December [10] Q&A Session Summary Question: Update on OCS award and revenue trajectory - Management indicated that the revenue ramp for OCS is better than expected, with significant revenues anticipated in early 2026 and a more meaningful inflection point in the second half of 2026 [30] Question: CPO opportunity and competitive landscape - Management feels confident in maintaining a competitive edge in the CPO market due to unique power levels and reliability of their lasers [33] Question: Contributions to the $600 million revenue target - Management expects continued strength in the components business and significant contributions from cloud modules and OCS [39] Question: Impact of semiconductor tariffs - Management believes their products are exempt from tariffs and has not seen material changes in business operations due to tariffs [54] Question: EML wafer fab capacity and pricing dynamics - Management is transitioning to larger wafers to increase capacity and anticipates that pricing discussions will become more significant in the coming quarters due to limited supply [106][109] Question: Profitability arc of OCS product offering - Management stated that OCS will be significantly above corporate margin averages and will be accretive to margins as volume increases [112]