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G.657.A2 Bare Fiber Product Specification
March 2, 2026
G.657.A2 Bare Fiber Product Specification
Document No.: G657A2-BF-2026-V1.0
Effective Date: 2026
Applicable Scope: This specification defines the technical requirements, test methods, quality criteria, packaging, and documentation of G.657.A2 single-mode bare fiber, which is applicable to foreign trade orders, supplier acceptance, customer delivery, and contract execution.
1. Product Overview
Product Name: G.657.A2 Single-Mode Bare Fiber
Definition: Bare fiber consists of only the core and cladding, without any buffer coating, jacket, or cable assembly. It complies with ITU-T G.657 A2 and ITU-T G.652.D standards, featuring low water peak, high bending resistance, and full-band transmission capability.
Application Scenarios: FTTH (Fiber to the Home) access, high-density cabling, data centers, campus networks, micro-cables, and pipeline dense turning scenarios.
2. Reference Standards
ITU-T G.657 Recommendation (Series G: Transmission Systems and Media, Digital Systems and Networks - Optical Fibers and Cables)
ITU-T G.652.D Recommendation
RoHS Directive (2011/65/EU) and REACH Regulation (EC) No 1907/2006
