---
product_id: 4295757
title: "Fibercore Single Mode Fiber for 633nm and 688nm, 4.3/125um Core/Cladding, 245um Coating, 50 Meters"
brand: "fibercore ltd"
price: "¥3397"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/4295757-fibercore-single-mode-fiber-for-633nm-and-688nm-4-3
store_origin: JP
region: Japan
---

# 50m length 125μm cladding 4.3μm core Fibercore Single Mode Fiber for 633nm and 688nm, 4.3/125um Core/Cladding, 245um Coating, 50 Meters

**Brand:** fibercore ltd
**Price:** ¥3397
**Availability:** ❌ Out of Stock

## Summary

> 🔗 Connect with Clarity: Elevate Your Optical Experience!

## Quick Answers

- **What is this?** Fibercore Single Mode Fiber for 633nm and 688nm, 4.3/125um Core/Cladding, 245um Coating, 50 Meters by fibercore ltd
- **How much does it cost?** ¥3397 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/4295757-fibercore-single-mode-fiber-for-633nm-and-688nm-4-3)

## Best For

- fibercore ltd enthusiasts

## Why This Product

- Trusted fibercore ltd brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Extended Reach:** 50 meters of high-quality fiber for all your project needs.
- • **Bend Resistance:** 0.11 – 0.13 NA minimizes loss while maintaining manageability.
- • **Standardized Fit:** 125μm glass diameter ensures compatibility with common connectors.
- • **Precision Engineering:** Crafted with a 4.3μm core for optimal performance.
- • **Versatile Compatibility:** Designed for seamless integration with HeNe and diode lasers.

## Overview

The Fibercore Single Mode Fiber is engineered for precision with a 4.3μm core and 125μm cladding, ensuring compatibility with HeNe and diode lasers at 633nm and 688nm. Its 50-meter length and bend-resistant design make it the ideal choice for professionals seeking reliable and high-performance optical solutions.

## Description

FIBERCORE SM600 Single Mode Fiber for 633nm and 688nm.Features:     4.3μm core, 125μm cladding and 245μm coating     Single mode transmission characteristics well matched to HeNe laser at 633nm, diode laser at 680nm.     Singlemode transmission at all common visible and NIR source wavelengths     125μm glass diameter enables the use of standard ferrules, V grooves and connectors     Typical 0.11 – 0.13 NA gives good resistance to bend induced loss without creating an unmanageably small mode.

## Features

- 4.3μm core, 125μm cladding and 245μm coating
- Single mode transmission characteristics well matched to HeNe laser at 633nm, diode laser at 680nm
- Singlemode transmission at all common visible and NIR source wavelengths
- 125μm glass diameter enables the use of standard ferrules, V grooves and connectors
- Typical 0.11 – 0.13 NA gives good resistance to bend induced loss without creating an unmanageably small mode.

## Images

![Fibercore Single Mode Fiber for 633nm and 688nm, 4.3/125um Core/Cladding, 245um Coating, 50 Meters - Image 1](https://m.media-amazon.com/images/I/21-oPrDoAtL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/4295757-fibercore-single-mode-fiber-for-633nm-and-688nm-4-3](https://www.desertcart.jp/products/4295757-fibercore-single-mode-fiber-for-633nm-and-688nm-4-3)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-31*