法国Keopsys 
Keopsys公司创建于1997年，总部位于法国Lannion，为业内专业致力于高功率光放大器与光纤激光器的著名厂商。Keopsys公司的核心技术为VSP(Vgroove Side Pumping)V型槽侧向泵浦技术，并同时拥有双包层泵浦技术。公司拥有12项VSP技术专利，具有成本低、耦合效率高、设计简单等诸多优点。
Keopsys公司产品包括C/L波段单信道/DWDM系列高功率EDFA、短脉冲EDFA放大器、高功率掺Yb放大器、短脉冲激光器、高功率Er/Yb/Raman光纤激光器等，Keopsys公司提供光模块、带电路驱动控制的光模块式、19英寸机架式等不同类型产品，并可根据客户具体技术要求进行订制。

Keopsys公司技术

法国Keopsys公司生产的光纤放大器和激光器产品在电信、远距离及现场传感、科研、工业及军事领域有着极其广泛的应用。Keopsys在产生高平均功率和高峰值功率方面有其独特的专长。产品使用综合方法进行优化从而可以进行各种特殊的应用，优化方法综合考虑了掺杂光纤的选用、泵浦方法、放大器结构及子器件、泵浦激光器的类型和波长、还有机电配置。为在峰值功率、光电转换效率、尺寸及重量方面达到最优性能，Keopsys使用了多种专利技术。
Keopsys的核心技术之一是使用高功率高可靠性的激光管来泵浦双包层增益光纤(double cladding gain fibers (DCGF))。尽管Keopsys应用了数种注入泵浦光到DCGF中的方式，但最通用的技术还是V型槽侧向泵浦 (v groove side pumping (VSP))技术。
Keopsys is headquartered in Lannion France, with an advanced R/D laboratory in Fairfax, Virginia and a sales office in Pittstown, New-Jersey.

Initially founded in 1997 by Marc Le Flohic, under the name of OptoCom Innovation, the company underwent significant expansion and was re-funded under a new name of Keopsys by Marc Le Flohic, Jean Marc Delavaux and Lew Goldberg. Keopsys investors include Sofinov, Thalès Ventures, Natexis Ventech and Bretagne Participation, and Quan Ventures, with a combined investment of 14 million euros.

Keopsys has attracted a team with a demonstrated record of technical expertise and innovation, with approximately 40% of its workforce holding advanced degrees. The company maintains successful technical collaborations with research laboratories, universities and companies around the world.

Keopsys manufactures a large range of standard and custom-designed optical fiber amplifiers and lasers for fiber and free space optical communication systems, CATV, component testing, remote sensing, spectroscopy, material processing, military and research applications. High output powers are achieved through the use of double cladding fibers pumped by broad stripe diodes. A variety of pumping techniques are utilized, each optimised for a specific application.

In addition to conventional multimode fiber couplers, many Keopsys products also use a proprietary v-groove side-pumping (VSP®) to efficiently inject the pump light directly into double cladding fibers. This approach offers higher conversion efficiency, smaller size, simpler assembly, and shorter signal path than possible with other pumping methods.