Financial Data and Key Metrics Changes - Full year revenue for fiscal 2025 increased by approximately 23% year over year to a record $5,810,000,000, driven by strong growth in data center and communications business [6][27] - Q4 revenue was a record $1,530,000,000, up 2% sequentially and 16% year over year [27] - Non-GAAP EPS for Q4 approximately doubled year over year to $1 per share, while full year non-GAAP EPS was $3.53, representing a 191% year over year growth [6][30] - Non-GAAP gross margin for Q4 was 30%, down 43 basis points sequentially but up 220 basis points year over year; full year gross margin was 37.9%, up 358 basis points from 2024 [27][28] Business Line Data and Key Metrics Changes - Data center and communications revenue grew by 51% in fiscal 2025, with Q4 revenue increasing 39% year over year [9] - Communications revenue increased 23% for fiscal 2025, with Q4 growth of 42% year over year [15] - Industrial related markets saw a revenue decrease of 2% for the year, with Q4 revenue down 8% year over year [17] Market Data and Key Metrics Changes - Strong growth in AI data centers and communications was noted, with full year data center revenue increasing by 61% [9] - Initial revenue shipments of new 1.6T transceivers began in Q4, with expectations for ramping volumes throughout the calendar year [10] - The company expects revenue from a new multiyear agreement with Apple for VCSEL products to begin in 2026 [13] Company Strategy and Development Direction - The company is focused on photonics technology, which is critical for applications in AI data centers, communications, and industrial applications [8] - A strategic decision was made to sell the Aerospace and Defense business for $400,000,000 to streamline the portfolio and concentrate investments in high-growth areas [19][32] - The company plans to use proceeds from the sale to pay down debt, which is expected to be accretive to EPS [30] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the strong demand signals for data center and communications, expecting sequential growth in the upcoming quarter [40] - The company views its U.S. manufacturing footprint as a competitive advantage, particularly in light of recent tariff policies [21][22] - Management remains optimistic about achieving long-term financial targets and gross margin improvements, aiming for greater than 42% gross margin in the future [90] Other Important Information - The company has tripled its indium phosphide capacity year over year and is ramping production at its new six-inch indium phosphide line in Sherman, Texas [12] - The company is experiencing strong bookings and demand forecasts across data center customers, particularly for transceivers [10] Q&A Session Summary Question: What is the growth outlook for the data center business in fiscal 2026? - Management noted strong demand signals and expects data center and communications to be up sequentially, driven by 800 gig and 1.6T transceivers [40][41] Question: Can you provide an update on the six-inch indium phosphide platform? - Production began in August, with expectations for increased capacity and lower costs as the ramp progresses [46][47] Question: What product categories might be down sequentially in the guidance? - Industrial markets are expected to be flat to down sequentially, with a cautious view due to macroeconomic factors [58] Question: How much incremental revenue is expected from the Apple relationship? - Revenue from the expanded partnership is expected to kick in during the second half of the next calendar year [51][66] Question: What are the competitive advantages of the OCS technology? - The OCS technology is based on digital liquid crystal, offering higher reliability and performance compared to traditional mechanical solutions [74][76] Question: What is the outlook for gross margins? - Management expects gross margins to benefit from the Apple arrangement and ongoing gross margin expansion initiatives [90]