Optical Transceivers
Dedicated optical transceivers from 1G to 800G supporting Ethernet, Fibre Channel, CPRI, and OTN standards.
Technical Architecture & Subproduct Scope
Semita Technologies delivers MSA-compliant optical modules engineered for high signal integrity, low latency, and low power dissipation. Every module features digital optical monitoring (DOM) and broad equipment compatibility across major enterprise switch and telecom transport platforms.
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100G QSFP28 Transceivers
Semita 100G QSFP28 optical transceivers are engineered for high-density 100 Gigabit Ethernet, telecom core routing, and hyperscale data center spine-leaf fabrics. Utilizing 4 independent optical channels running at 25 Gbps each, these modules feature digital optical monitoring (DOM), ultra-low power consumption (< 3.5W), and universal compatibility across major enterprise switch platforms.
Key Engineering Features
- 4 independent 25Gb/s channels supporting aggregate 103.1 Gbps throughput
- Variants: 100G SR4 (100m OM4), 100G LR4 (10km SM), 100G CWDM4 (2km), 100G ER4-Lite (40km)
- Ultra-low power dissipation: < 3.5W max across full commercial temperature range
- Built-in Digital Diagnostic Monitoring (DDM / DOM) via 2-wire I2C interface
- Full hardware compliance with QSFP28 MSA SFF-8665 and IEEE 802.3ba
Approved Applications & Deployments
Technical Performance Specifications
| Form Factor | QSFP28 (Quad Small Form-factor Pluggable 28) |
|---|---|
| Aggregate Data Rate | 103.125 Gbps (4 x 25.78 Gbps) |
| Optical Connector | MPO-12 (SR4/PSM4) or Duplex LC (LR4/CWDM4/ER4) |
| Operating Wavelengths | 850 nm (SR4) | 1295–1310 nm LAN-WDM (LR4) | CWDM |
| Reach Options | 100m (SR4 OM4) | 2km (CWDM4) | 10km (LR4) | 40km (ER4) |
| Transmitter Type | 4-Ch VCSEL (SR4) or 4-Ch DFB/EML Laser |
| Power Dissipation | ≤ 3.5 W Max |
| Operating Temperature | 0°C to +70°C (Commercial) / -40°C to +85°C (Industrial) |
40G QSFP+ Transceivers
Semita 40G QSFP+ optical modules deliver proven, cost-effective 40 Gigabit Ethernet connectivity for enterprise aggregation switches, storage area networks (SAN), and legacy data center fabrics. Supporting 4 parallel channels of 10 Gbps each, these transceivers offer seamless interoperability with 4x10G breakout configurations.
Key Engineering Features
- 4 independent parallel channels at 10.3125 Gbps each (40G aggregate)
- Available in 40G SR4 (150m OM4 MPO), 40G LR4 (10km Duplex LC), and BiDi variants
- Supports 4x10G breakout using MPO-to-4xLC harness assemblies
- Digital Diagnostics functions available via SFF-8436 protocol
- Hot-pluggable electrical interface with low EMI metal enclosure
Approved Applications & Deployments
Technical Performance Specifications
| Form Factor | QSFP+ (Quad Small Form-factor Pluggable) |
|---|---|
| Data Rate | 41.25 Gbps Aggregate (4 x 10.3125 Gbps) |
| Optical Interface | MPO-12 (SR4) / Duplex LC (LR4/ER4) |
| Wavelength | 850 nm (SR4) / 1270–1330 nm CWDM (LR4) |
| Max Reach | 150m on OM4 (SR4) | 10km (LR4) | 40km (ER4) |
| Power Dissipation | ≤ 2.5 W Max |
| Operating Temperature | 0°C to +70°C |
25G SFP28 Transceivers
Semita 25G SFP28 transceivers are optimized for next-generation 5G wireless fronthaul (eCPRI/CPRI), 25GbE server network interface cards (NIC), and high-density ToR switches. Operating on a single 25 Gbps optical lane, they deliver 2.5x the throughput of 10G SFP+ in the identical physical footprint with minimal power dissipation.
Key Engineering Features
- Single-lane 25.78 Gbps NRZ modulation optical interface
- Industrial temperature rated (-40°C to +85°C) variants for outdoor 5G tower RRUs
- Available in 25G SR (100m MM), 25G LR (10km SM), 25G ER (40km), and BiDi (10/20km)
- Built-in internal Clock and Data Recovery (CDR) on Tx and Rx
- Full compliance with SFP28 MSA SFF-8402 and IEEE 802.3by
Approved Applications & Deployments
Technical Performance Specifications
| Form Factor | SFP28 (Enhanced 25G SFP) |
|---|---|
| Data Rate | 25.78 Gbps / 24.33 Gbps (CPRI Option 10) |
| Optical Connector | Duplex LC / Simplex LC (BiDi) |
| Operating Wavelength | 850 nm (SR) | 1310 nm (LR) | CWDM/DWDM Grid |
| Transmission Distance | 100m (SR OM4) | 10km (LR) | 40km (ER) |
| Power Consumption | ≤ 1.2 W (SR/LR) / ≤ 1.8 W (ER) |
| Industrial Temp Support | -40°C to +85°C (Available across all models) |
| Compliance | IEEE 802.3by, IEEE 802.3cc, SFF-8472, SFF-8402 |
10G SFP+ Transceivers
Semita 10G SFP+ optical transceivers are the reliable workhorse modules for enterprise switches, routers, and storage networks. Supporting 10GBASE-SR, LR, ER, ZR, single-fiber BiDi, and CWDM/DWDM wavelengths, every module is programmed and tested for broad multi-vendor interoperability.
Key Engineering Features
- Comprehensive variants: SR (300m), LR (10km), ER (40km), ZR (80km), and BiDi single-fiber
- Broad multi-vendor compatibility coding for Cisco, Juniper, Arista, Huawei, and Dell
- Digital Diagnostic Monitoring (DDM / DOM) for real-time laser bias, power, and temp
- Power consumption below 1.0W for high-density 48-port switch line cards
- Compliant with SFF-8431, SFF-8432, SFF-8472, and IEEE 802.3ae
Approved Applications & Deployments
Technical Performance Specifications
| Form Factor | SFP+ (Enhanced Small Form-factor Pluggable) |
|---|---|
| Data Rate | 10.3125 Gbps (9.95 to 11.3 Gbps multi-rate) |
| Optical Interface | Duplex LC / Simplex LC (BiDi) |
| Wavelengths | 850 nm (SR) | 1310 nm (LR) | 1550 nm (ER/ZR) | CWDM / DWDM |
| Transmission Reach | 300m (SR) | 10km (LR) | 40km (ER) | 80km (ZR) |
| Power Consumption | < 1.0 W Max (SR/LR) |
| Compliance | SFF-8431, SFF-8472, IEEE 802.3ae |
10G XFP Optical Modules
Semita 10G XFP transceivers support legacy 10 Gigabit Ethernet, 10G Fibre Channel, and SONET OC-192 / SDH STM-64 carrier transport platforms. Engineered with hot-swappable 30-pin electrical interfaces and robust heatsinks, they ensure dependable optical transmission in telecom core chassis.
Key Engineering Features
- Multi-protocol support: 10GbE, 10G Fibre Channel, and SONET OC-192 / SDH STM-64
- Available in SR (300m), LR (10km), ER (40km), ZR (80km), and Tunable DWDM
- Integrated XFP Digital Diagnostic Monitoring (DDM)
- Robust EMI metal housing with integrated thermal dissipation ribs
- Fully compliant with XFP MSA INF-8077i standard
Approved Applications & Deployments
Technical Performance Specifications
| Form Factor | XFP (10 Gigabit Small Form Factor Pluggable) |
|---|---|
| Data Rates | 9.95 Gbps to 11.1 Gbps |
| Connector | Duplex LC |
| Operating Wavelengths | 850 nm, 1310 nm, 1550 nm, 100GHz DWDM Grid |
| Distance | 300m (SR) | 10km (LR) | 40km (ER) | 80km (ZR) |
| Power Supply | +3.3V and +5.0V DC |
| Compliance | XFP MSA INF-8077i, IEEE 802.3ae |
CFP & CFP2 Coherent Transport Modules
Semita CFP and CFP2 optical transport modules are engineered for long-haul DWDM telecom networks, OTU4 optical transport networks, and carrier interconnect lines. Offering coherent Digital Coherent Optics (DCO) variants with tunable C-Band lasers and advanced DSP, these modules enable error-free transmission over distances up to 1,200 km.
Key Engineering Features
- Coherent DP-QPSK and DP-16QAM modulation for long-haul carrier routes
- Full C-Band tunability across 50GHz / 100GHz ITU-T grid
- Integrated high-speed Digital Signal Processor (DSP) with Soft-Decision FEC
- High transmission reach from 10km client LR4 up to 1,200km coherent DCO
- Compliant with CFP and CFP2 MSA standards and IEEE 802.3ba 100GBASE-LR4
Approved Applications & Deployments
Technical Performance Specifications
| Form Factor | CFP (100G) / CFP2 (100G/200G DCO) |
|---|---|
| Data Rate | 100 Gbps to 200 Gbps (OTU4 / 100GE) |
| Optical Connector | Duplex LC |
| Wavelength | Full C-Band Tunable (1528.77–1568.36 nm) or 1310 nm LAN-WDM |
| Modulation | Coherent DP-QPSK / DP-16QAM (DCO) | 4x25G NRZ (LR4) |
| Reach | 10km (LR4) | 80km to 1,200km (Coherent DCO with EDFA) |
| Forward Error Correction | High-gain SD-FEC (Soft Decision) |
| Standard Compliance | CFP/CFP2 MSA, IEEE 802.3ba, ITU-T G.709 |
CPAK 100G Optical Modules
Semita CPAK 100G optical transceivers are specialized form-factor modules engineered for high-density core routing and switching line cards. Providing over 70% space reduction and significant power savings compared to standard CFP modules, CPAK delivers seamless 100GBASE-SR4, LR4, and ER4-Lite connections.
Key Engineering Features
- Compact proprietary form factor designed for high-density line card faceplates
- Up to 70% lower power consumption than first-generation CFP transceivers
- Available in CPAK-100G-SR4 (MPO) and CPAK-100G-LR4 (Duplex LC)
- Compliant with IEEE 802.3ba 100GBASE-LR4 optical specifications
- Complete hardware compatibility with high-density carrier routing chassis
Approved Applications & Deployments
Technical Performance Specifications
| Form Factor | CPAK Pluggable Transceiver |
|---|---|
| Aggregate Data Rate | 103.125 Gbps |
| Optical Interface | Duplex LC (LR4) / MPO-12 (SR4) |
| Wavelength | 4 LAN-WDM Wavelengths (1295.56, 1300.05, 1304.58, 1309.14 nm) |
| Reach | 100m on OM4 (SR4) | 10km on Single-Mode Fiber (LR4) |
| Power Consumption | < 5.5 W (LR4) |
| Operating Temperature | 0°C to +70°C |
GPON & EPON Optical Transceivers
Semita GPON and EPON SFP modules are designed for Optical Line Terminals (OLT) and Optical Network Units (ONU) in FTTH point-to-multipoint passive optical networks. Available in Class B+, Class C+, and high-budget Class C++ variants, these single-fiber bi-directional transceivers deliver robust optical link budgets to support split ratios up to 1:64 and 1:128.
Key Engineering Features
- Single-fiber BiDi transmission: 1490nm DFB CW laser (Tx) and 1310nm APD burst receiver (Rx)
- High optical link budget exceeding 32 dB (Class C+) and 35 dB (Class C++)
- Integrated Diplexer with SC/UPC optical receptacle
- Fast burst-mode signal detection for incoming subscriber packets
- Compliant with ITU-T G.984.2 (GPON) and IEEE 802.3ah (EPON)
Approved Applications & Deployments
Technical Performance Specifications
| Standards Compliance | ITU-T G.984.2 (GPON) / IEEE 802.3ah (EPON) |
|---|---|
| Data Rate | 2.488 Gbps Downstream / 1.244 Gbps Upstream (GPON) |
| Optical Connector | SC / UPC Single Receptacle |
| Tx Wavelength | 1490 nm Continuous DFB Laser |
| Rx Wavelength | 1310 nm Burst-Mode APD-TIA Receiver |
| Optical Power Budget | Class B+ (28 dB) | Class C+ (32 dB) | Class C++ (35 dB) |
| Split Ratio | Supports up to 1:64 (Class B+) / 1:128 (Class C+) |
| Operating Distance | Up to 20 km (Standard PON Span) |
Copper SFP & SFP+ (10G & 1G RJ45)
Semita copper SFP and SFP+ modules convert standard optical SFP slots into Category 5e, 6, and 6A twisted-pair copper RJ45 ports. Supporting 1000BASE-T and 10GBASE-T, these plug-and-play modules allow network administrators to connect server network ports, firewalls, and local patch fields without installing separate dedicated copper line cards.
Key Engineering Features
- Converts optical SFP/SFP+ cage to standard 8-pin RJ45 copper interface
- 10GBASE-T version supports reaches up to 30m on Category 6A / 7 UTP
- 1000BASE-T version supports standard 100m runs on Category 5e/6 UTP
- Auto-negotiation for 100M/1G/2.5G/5G/10G data rates
- Low power dissipation (< 2.5W for 10G, < 1.0W for 1G)
Approved Applications & Deployments
Technical Performance Specifications
| Form Factor | SFP / SFP+ with Integrated RJ45 Jack |
|---|---|
| Data Rates Supported | 10GBASE-T (10 Gbps) / 1000BASE-T (1 Gbps) |
| Cable Reach | 10G: Up to 30m (Cat6A/Cat7) | 1G: Up to 100m (Cat5e/Cat6) |
| Connector | Standard Shielded RJ45 Receptacle |
| Power Consumption | ≤ 2.5 W (10GBASE-T) / ≤ 1.0 W (1000BASE-T) |
| Operating Temperature | 0°C to +70°C |
| Standards Compliance | IEEE 802.3an, IEEE 802.3ab, SFF-8431 |
Deploy High-Reliability Optical Transceivers with Semita
Whether you require customized cable constructions, high-precision optical attenuation tolerances, or fast-track batch delivery across India and global hubs, our engineers are ready to assist.