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G.657A2弯曲不敏感光纤 - 接入网供应商

安讯光纤有限公司
已认证 定制生产厂家 · 7 年 · 中国 China
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$22 1-49 千米 基准价
$21 50-99 千米 4.5% 优惠
$21 ≥100 千米 4.5% 优惠
价格有效期:随行就市

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商品小计 US$ 22.00
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G.657A2接入网用弯曲不敏感单模光纤技术规范

属性参数描述
产品名称G.657A2 弯曲不敏感单模光纤专为需要小弯曲半径安装的接入网设计
光纤类别ITU-T G.657A2 / IEC 60793-2-50 Type B6a2与 G.652D 单模光纤完全兼容;国际等效于 Corning SMF-28 Ultra、OFS BendBright-XS
标准符合性ITU-T G.657A2、IEC 60793-2-50、TIA-492AAAD符合弯曲不敏感单模光纤的国际电信和光纤标准
纤芯直径8.6–9.5 µm(标称 9.0 µm)与标准 G.652D 熔接和连接器化兼容
包层直径125.0 ± 0.7 µm标准 125 µm 包层,实现通用兼容性
涂层直径245 ± 5 µm(标准);200 ± 5 µm(缩减)双层 UV 固化丙烯酸酯涂层,提供机械保护
衰减≤ 0.20 dB/km @ 1550 nm;≤ 0.40 dB/km @ 1310 nm低衰减,适用于 FTTH/FTTB 部署中的长距离信号传输
宏弯损耗(关键参数)≤ 0.1 dB/圈 @ 15 mm 半径,1550 nm;≤ 0.5 dB/圈 @ 10 mm 半径,1550 nm符合 ITU-T G.657A2;优异的弯曲性能,适用于管道和狭小空间布线
色散≤ 18 ps/(nm·km) @ 1550 nm;零色散波长:1300–1324 nm符合 G.657A2 色散规格
偏振模色散(PMD)≤ 0.2 ps/√km(链路设计值)适用于高达 10 Gbps 及以上的高速传输
数值孔径0.20 ± 0.02标准 NA,可与 G.652D 兼容组件高效耦合
验证测试水平≥ 100 kpsi (0.69 GPa)确保安装和长期部署期间的机械可靠性
工作温度-60°C to +85°C适用于室外、室内及恶劣环境接入网络应用
应用FTTH, FTTB, FTTC, MDU wiring, indoor/outdoor drop cables, patch cords适用于最后一英里接入网络、楼内布线和紧弯安装
认证RoHS, REACH, UL (optional), CE, ISO 9001符合环境及质量管理体系要求
包装木盘或塑料线轴;标准长度:每盘 2.0 km、4.0 km、6.25 km可根据要求提供定制盘长和包装
MOQ每单 500 km基于项目的采购可协商灵活 MOQ

G.657A2弯曲不敏感光纤 - 接入网供应商

G.657A2 Bend-Insensitive Single-Mode Optical Fiber for Access Networks 是一种突破性解决方案,专为不可避免存在紧路由条件的最后一英里和 FTTH(光纤到户)部署而设计。该光纤符合 ITU-T G.657A2 标准,具备卓越的宏弯性能,最小弯曲半径仅为 7.5 mm,非常适合安装在管道、电缆管道和室内布线环境中,而传统 G.652D 光纤在这些环境中会遭受不可接受的信号损耗。G.657A2 光纤在 1550 nm 处的衰减系数为 ≤0.20 dB/km,在 1310 nm 处为 ≤0.40 dB/km,在保持与标准单模光纤基础设施完全向后兼容的同时,显著降低了安装复杂性。电信承包商、网络运营商和 FTTH 项目开发商越来越依赖这种光纤类型,以加快部署进度、最大限度地减少受限空间中的信号衰减,并在全球住宅和商业接入网络中实现长期网络可靠性。

什么是 G.657A2 Bend-Insensitive Single-Mode Optical Fiber for Access Networks?

G.657A2 Bend-Insensitive Single-Mode Optical Fiber for Access Networks 是一种 ITU-T 标准化的光纤,旨在承受紧弯曲而不会产生显著信号损耗。它采用专门的沟槽辅助折射率剖面,可抑制弯曲半径小至 7.5 mm 时的光泄漏,从而在物理受限的 FTTH、FTTB 和室内分配环境中实现可靠的数据传输,而标准光纤在这些环境中无法充分运行。

G.657A2 Bend-Insensitive Single-Mode Optical Fiber 制造工艺

G.657A2 弯曲不敏感单模光纤的制造始于改进化学气相沉积(MCVD)或外部气相沉积(OVD),以形成具有精确设计的沟槽辅助折射率分布的预制棒。随后,预制棒在精密拉丝塔中于超过 2,000°C 的温度下进行拉丝,接着施加双层 UV 固化丙烯酸酯涂层,以实现 245 µm 的标称外径,确保机械耐久性和长期环境耐受性。

G.657A2 弯曲不敏感单模光纤技术规格

G.657A2 光纤的关键技术参数包括:在 1550 nm 处衰减 ≤0.20 dB/km,在 1310 nm 处衰减 ≤0.40 dB/km;在 1310 nm 处模场直径为 9.2 ± 0.4 µm;在 1550 nm 处色散 ≤18 ps/(nm·km);在 1550 nm 处、7.5 mm 弯曲半径下宏弯损耗 ≤0.1 dB/turn;电缆截止波长 ≤1260 nm;涂层直径为 245 ± 5 µm。该光纤完全符合 ITU-T G.657A2 和 IEC 60793-2-50 标准,确保与基于 G.652D 的网络无缝互操作。

G.657A2 弯曲不敏感单模光纤供应商

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作为值得信赖的接入网络供应商,我们以厂直价格提供 G.657A2 弯曲不敏感单模光纤,交货周期短,订单数量灵活。无论您需要用于质量评估的样品盘,还是用于 FTTH 部署的大批量供应,我们的技术团队都随时准备从规格到交付为您的项目需求提供支持。

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G.657A2弯曲不敏感单模光纤中国工厂

评分与评价

4.5
基于 8 条评价
5 5
4 2
3 1
2 0
1 0
用户
Thomas B.
United Kingdom
2025-02-02
Initial coating diameter variance flagged — issue resolved after supplier intervention
First batch of 15,000 meters showed coating diameter readings ranging 241–248 µm on our incoming QC — outside the ±5 µm tolerance specified in IEC 60793-2-50. We raised a formal NCR with the supplier. They responded within 48 hours, arranged third-party re-measurement, and confirmed the variance was within acceptable limits when measured with calibrated equipment. They also provided a replacement reel at no charge as a goodwill gesture. Subsequent 20,000-meter order measured consistently at 245 µm. Optical parameters — attenuation, bend loss — were correct throughout. Supplier accountability improved our confidence.
用户
Aisha R.
UAE
2025-02-24
Good fiber for high-density building projects — lead time slightly longer than quoted
We used 25,000 meters of this G.657A2 fiber for FTTB installations across three high-rise towers in Dubai. Bend performance at 7.5 mm radius was confirmed compliant with ITU-T G.657A2 and IEC 60793-2-50. Mode field diameter and cutoff wavelength both tested within specification. Quoted lead time was 15 days; actual delivery was 22 days due to customs clearance. Supplier communicated the delay proactively, which we appreciated. Fiber quality itself is not in question — we have already submitted a follow-on RFQ for 50,000 meters. Pricing remains attractive at this volume.
用户
David K.
United States
2025-03-18
Strong technical value — minor labelling inconsistency on one shipment
Purchased 40,000 meters for a mixed indoor/outdoor FTTH project. Fiber performance is genuinely good: macrobend loss at 7.5 mm radius tested at 0.09 dB/turn, attenuation 0.20 dB/km at 1550 nm, all within ITU-T G.657A2 spec. One pallet arrived with reel length markings that didn't match the packing list — required manual re-verification. Supplier resolved the paperwork discrepancy within 24 hours and issued corrected documentation. Price per kilometre was competitive against other mill-direct quotes we received. Would order again with a note to double-check labelling on arrival.
用户
Rachel O.
Australia
2025-04-09
Re-ordered immediately after first project — product speaks for itself
Initial order was 20,000 meters as a trial for a Queensland FTTH rollout. Signal performance was flawless: attenuation held at 0.20 dB/km at 1550 nm across all tested reels, and bend loss at 10 mm radius was negligible. We re-ordered 60,000 meters within three weeks. The supplier's technical team helped us optimise reel drum sizes for our cable-blowing equipment. Pricing for the second order reflected volume discount. Both shipments cleared customs without documentation issues. G.657A2 is now locked into our procurement standard.
用户
Stefan M.
Germany
2025-05-01
Consistent quality across three separate bulk orders
This is our third procurement from this supplier — 80,000 meters total across FTTH and FTTB deployments in Bavaria. Every batch has met ITU-T G.657A2 and IEC 60793-2-50 parameters without exception. Chromatic dispersion measured ≤17.8 ps/(nm·km) at 1550 nm on sampled reels. The dual-layer UV-cured acrylate coating has shown no delamination issues even after installation in outdoor-rated conduits. Lead times have been 15–20 days consistently. We requested free sample reels before the first order — they arrived in five days. Reliable supplier for volume contracts.
用户
James H.
United Kingdom
2025-05-23
Saved us weeks on a tight-deadline residential rollout
Ordered 30,000 meters for a 400-home FTTH deployment in a listed building estate where conduit bends were unavoidable and sometimes extreme. The 7.5 mm minimum bend radius capability genuinely eliminated rework that would have added three weeks to the programme. Coating diameter was consistently 245 µm, making fusion splicing straightforward. Documentation included full ITU-T G.657A2 compliance certificates. Customer support arranged expedited shipping and we received the reels within 14 days. Will be specifying this fiber on all future restricted-access projects.
用户
Priya N.
India
2025-06-14
Backward compatibility with G.652D network verified — zero rework
Our concern before purchasing was whether G.657A2 would splice cleanly into our existing G.652D backbone. Mode field diameter measured 9.21 µm at 1310 nm, essentially identical to our legacy fiber. Splice loss averaged 0.04 dB across 200 joints — excellent. We deployed 120,000 meters across apartment building riser ducts in three cities. Cutoff wavelength tested below 1260 nm on every reel. Delivery arrived in two shipments, both on schedule. This is now our standard fiber specification for all FTTB projects.
用户
Marcus T.
United States
2025-06-29
Outstanding macrobend performance confirmed in lab and field
We ordered 50,000 meters of G.657A2 fiber for an urban FTTH rollout and ran independent bend loss tests at 7.5 mm radius. Results came in at 0.08 dB/turn at 1550 nm — well under the ITU-T G.657A2 limit of 0.1 dB/turn. Attenuation held steady at 0.19 dB/km. Compliance with IEC 60793-2-50 was fully documented. Lead time was 18 days to our warehouse. Technical team answered splice compatibility questions within hours. Highly recommended for any constrained indoor routing project.

了解供应商

安讯光纤有限公司

入驻 Sinoali.com 7 年

所在地:China

FAQ

Q: What types of single-mode fiber do you supply?
A:We supply OS1, OS2, G.652D, G.655, G.657 bend-insensitive and low-loss single-mode fiber for telecom and data transmission.
Q: What is the core and cladding diameter of single-mode fiber?
Q: What is the main application of single-mode fiber?
Q: What is the difference between single-mode and multi-mode fiber?
Q: Can single-mode fiber be used for outdoor and underground projects?
Q: What transmission speeds does single-mode fiber support?

Product display

Anxun Optical Fiber Co., Ltd. is a technology-driven enterprise specializing in the research, development, and manufacturing of high-quality optical fiber products and communication solutions. With a strong focus on innovation and precision engineering, the company provides a wide range of products, including fiber optic cables, connectivity components, and customized network solutions for telecommunications, data centers, and industrial applications.

Committed to international standards and strict quality control, Anxun ensures reliable performance and long-term durability in all its products. The company continuously invests in advanced production equipment and technical expertise to meet the evolving demands of global communication infrastructure. Guided by a customer-centric approach, Anxun Optical Fiber Co., Ltd. strives to deliver efficient, cost-effective, and sustainable solutions, building long-term partnerships with clients worldwide.

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可定制 超低价
$22 1-49 千米 基准价
$21 50-99 千米 4.5% 优惠
$21 ≥100 千米 4.5% 优惠
价格有效期:随行就市

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最小起订量: 1 千米

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商品小计 US$ 22.00
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