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Nepal Co-packaged Optical QSFP

Optical network knowledge brief Published 14 Sep 2024

Prepared for preliminary research by the COETZER OPTICAL knowledge desk. Confirm compatibility, loss budgets and installation requirements against current standards and product documentation.

High-performance co-packaged optical QSFP modules, including ELSFP and QSFP-DD, are available in Nepal through certified suppliers like D-TECH, supporting 400G and 100G data center applications.Availability in Nepal

D-TECH Trading is a trusted supplier of SFP and QSFP modules in Nepal, serving ISPs, data centers, hydropower projects, and enterprise networks . They offer 100G QSFP28 Dual LC 1310nm modules and 100G QSFP BIDI modules for single-fiber operation, suitable for backbone networks, aggregation layers, and data center interconnections . These modules are ready in stock and come with technical support and after-sales service.

Co-Packaged Optics (CPO) Overview

Co-Packaged Optics (CPO) integrates high-density optical transceivers with switch ASICs on the same substrate, reducing electrical interconnect lengths and improving energy efficiency . CPO solutions optimize both electronics and photonics, enabling high-speed data communication while minimizing heat and signal distortion. The technology supports QSFP-DD, OSFP, and ELSFP form factors, which are standardized for optical transceivers .

External Laser Source QSFP (ELSFP)

The ELSFP is a QSFP housing designed for co-packaged optics, featuring an uncooled 8-channel Transmitter Optical Sub-Assembly (TOSA) and control circuitry . Key specifications include:

  • Fiber-coupled power: 20 dBm
  • Power consumption: 5.6 W
  • Power conversion efficiency (PCE): 14.3% at 55°C housing temperature
  • Optical outputs: Compatible with 400GBASE-FR4 (4-wavelength CWDM) or 400GBASE-DR4 (single wavelength 1311 nm)
  • Performance metrics: Polarization extinction ratio (PER) >20 dB, Side-Mode Suppression Ratio (SMSR) >50 dB The ELSFP design isolates heat sources from the core, maintaining high efficiency without requiring a thermo-electric cooler (TEC), making it ideal for dense data center deployments .
Applications

These co-packaged optical QSFP modules are suitable for:

  • Data center interconnects (DCIs)
  • High-speed backbone networks
  • Aggregation layers and enterprise networks
  • Energy-efficient, high-bandwidth deployments By using certified suppliers in Nepal, organizations can ensure reliable performance, compliance with local standards, and technical support for deploying co-packaged optical QSFP solutions.

Nepal Co-packaged Optical QSFP - COETZER OPTICAL SYSTEMS (Pty) Ltd [PDF]

Nepal Co-packaged Optical QSFP

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Technical note

This reference is intended for preliminary optical-network research. Compatibility, link budgets, installation methods, test limits and applicable standards must be verified for the specific project.

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