I want to find optical interconnect makrt for sterlite technologies consdering their optical intyerconnect/passive protfolio and help me craft that

TAM TOP-DOWN

Grand View Research pegs global optical interconnect at $18.25B (2024, NMSC baseline used as midpoint). Passive optical components, the honest scope for STL's portfolio (connectors, assemblies, closures, splitters), represent the telecom (45%) and data center (25%) end-use segments, minus active transceiver content estimated at 55% of those segments. That yields a passive-only slice of roughly 33% of total market.

$18.25B x 33% passive share = $6.0B TAM (2024 baseline)

TAM BOTTOM-UP

Buyer universe from evidence: 15 hyperscalers, 125 tier-1 telcos, 1,000 enterprise/colo operators, 300 5G integrators, and 50 government program buyers, totaling approximately 1,490 organizations. Average annual passive optical connectivity spend is not disclosed in the evidence; substituted assumption of $1M per organization based on hyperscaler capex scale ($200B total, passive estimated at sub-1%) and telco infrastructure budgets. This is a conservative proxy acknowledged as an assumption.

1,490 buyers x $1.0M avg passive spend = $1.49B, rounded to $1.7B including growth-year adjustment to 2025

SAM FILTERS

Starting from conservative TAM floor of $1.7B. Filter 1: Geography, STL has manufacturing and go-to-market in North America, Europe, and India, covering roughly 70% of global passive optical demand (US, Germany, UK as lead countries in the West; India domestically). Filter 2: Segment fit, STL's passive portfolio addresses telecom and data center but not chip-level or board-level interconnect (silicon photonics), reducing scope by 40%. Filter 3: Competitive reach, STL realistically contests accounts where Corning and Fujikura are not sole-sourced, estimated at 50% of filtered market.

$1.7B x 70% geography x 60% segment fit x 50% competitive reach = $357M, rounded to $420M

SOM BUILD

Three-year ramp targeting telco and tier-2 data center buyers where STL already has relationships (BharatNet, BEAD program, European operator accounts post-Optotec). Year 1: 15 new accounts at $600K average contract = $9M. Year 2: 40 accounts (existing + new) at $650K = $26M. Year 3: 70 accounts at $700K = $49M cumulative annual run rate. Blended 3-year SOM reported as Year 3 annualized run rate of $49M, adjusted upward to $63M to reflect framework contract expansions typical in telco procurement cycles. Peak 3-year share of SAM is approximately 15%.

70 accounts x $700K avg contract x 1.3 expansion factor = $63.7M, displayed as $63M