Optical fiber. Global connections.
Serving Europe, North America & beyond
≋OpticFiberHubCONNECTING WHAT'S NEXT
G.657.A2 optical fiber reel with model label, illustrative image

Coated optical fiber on reels · Illustrative product image

SINGLE-MODE OPTICAL FIBER

G.657.A2 Single-mode optical fiber

Bend insensitive fiber for FTTH

G.657.A2 bend insensitive fiber on reels for FTTH and compact access cable designs. Compare the documented 200 ± 10 μm and 242 ± 7 μm coating options, attenuation and macrobend conditions when preparing a G657A2 supplier inquiry.

Attenuation · 1550 nm
≤ 0.210 dB/km
Cladding diameter
125 ± 0.7 μm
Coating diameter
242 ± 7 μm / 200 ± 10 μm
Request a Quote Full specifications ↓

Pricing, order quantity and lead time confirmed for your specification and delivery destination.

PRODUCT DATA

Technical specifications

Values below are supplier reference limits. Test conditions and units are shown for engineering review.

G.657.A2 optical fiber reference specifications
Parameter / test conditionReference specification
Attenuation at 1310 nm≤ 0.350 dB/km
Attenuation at 1550 nm≤ 0.210 dB/km
Cladding diameter125 ± 0.7 μm
Coating diameter (table value)242 ± 7 μm / 200 ± 10 μm
Mode field diameter at 1310 nm8.6 ± 0.4 μm
Macrobend: 7.5 mm radius, 1 turn, 1550 nm≤ 0.40 dB
Reference source: Jiangsu Nanfang Optical Fiber Product Manual, pages 7–8. Translated from the Chinese manufacturer document. Values describe the source grade; confirm the offered supplier, coating and batch conformity with your quote. Manufacturer series names identify source products, not an authorized distributorship.
SPECIFICATION & PROCUREMENT

Before you request a G.657.A2 quote.

Clear answers from the reference specifications, with the supply scope kept explicit.

Compare optical fiber specifications →
What is the published G.657.A2 macrobend test?

The reference limit is ≤ 0.40 dB at 1550 nm with a 7.5 mm radius and one turn. The listed coating options are 242 ± 7 μm / 200 ± 10 μm; confirm the exact offered option and its manufacturing compatibility. Keep all three bend-test conditions with the loss value. Confirm the finished cable installation limits separately.

Is this optical fiber on reels or a finished fiber optic cable?

This page describes coated optical fiber on reels for use before cabling, not a finished cable, connector assembly or installed channel. The published table is supplier reference data, not a test report for your order. Ask the quotation to identify the offered manufacturer, exact grade and coating, and the documents that will accompany the allocated reels.

What should I include in a G657A2 optical fiber RFQ?

For G.657.A2, specify the coating option, total fiber-km, preferred continuous length per reel, and delivery country and ZIP or postal code. Request the offered datasheet, traceable reel list and applicable batch test report; state required fields and approval timing. Identify acceptable alternatives separately. Pricing, minimum order quantity and lead time are confirmed with the actual supplier quotation. RFQ checklist → · Reel documentation →

Related knowledge
Explore guides
Comparison

G.657.A1 vs G.657.A2: Bend Performance, Coating and Applications

Compare G.657.A1 and A2 using complete test conditions, source-specific coating values and project requirements.

Read the guide Technical

What Is Macrobend Loss? Radius, Turns and Wavelength Explained

Read optical fiber bend-loss specifications without confusing test radius with finished-cable installation limits.

Read the guide Procurement

Optical Fiber RFQ Checklist: Prepare a Complete Inquiry

Prepare a bulk optical fiber RFQ with model, quantity, coating, reel length, destination and batch documents. Separate required limits from open questions.

Read the guide