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LD-PD INC Established in 2004, we have become one of the leading sources in providing low cost Photo detector, laser diode and some related driving products. Our well educated research and development team is committed in search of answers to most frequently asked questions in today's complex technology. Our well trained engineering team, employs top of the line state-of-the-art technology in innovative fiber optics products.

At the core of LD-PD’s capabilities is its expertise in designing and manufacturing high power, high reliability laser diodes. What’s more, LD-PD has been a manufacturer of Si detector and high speed Germanium transistors and diodes since 2008 and a manufacturer of infrared photodetectors since 2010. We offer SI,Ge, p-n, APD and InGaAs p-i-n high speed and large area photodetectors for radiation detection and telecommunication applications. LD-PD maintains an inspection system in accordance with MIL-I-45208. Photodiodes are subjected to Telcordia testing requirements (TA-NWT-00093), MIL-STD-883 test methods and/or customer specifications.

These lasers can be:


LD-PD INC provides laser diode epitaxy over a wide wavelength range in GaAs and InP based materials. We are a III-V base semiconductor processing fab Wavelengths:



We are also able to customize the epitaxy for any other specific wavelength required.


In developing this innovative process, LD-PD’S laser engineers have amassed a high level of technical expertise and created an array of design tools that allow specific customer requirements to be translated into laser chips. Our design engineers utilize state-of-the-art physical laser modeling software and waveguide design tools; bespoke software especially developed to ensure the function of the Chips is fully incorporated into the design considerations.

Our Diode Laser products include multimode single emitters and multi-emitter fiber coupled modules, single mode laser diodes, laser diode bars and stacks, and VCSELS,SLD. And We also offer a wide selection of UV laser diodes, blue laser diodes, red laser diodes, and IR laser diodes.  The output power ranges from mWs on the single mode laser diodes, to watts in the multimode single emitters and VCSELS.

We are Really your best partner in laser diodes and Photodiodes.

Our Workshop Corners as follows:




  • Fiber laser


    Xiao Xiao (Shanghai) Photonics Technology Co., Ltd. provides comprehensive solutions for fiber laser products. Our suppliers come from the world's top manufacturers, supporting the corresponding large core fiber cutting and end face matching. Solutions, we have many years of experience in fiber laser production. It can provide corresponding solutions for different types of fiber lasers. All devices include continuous working mode, pulse mode, high power and low power devices. Welcome to inquire.

    Fiber: we mainly supply Likkie optical fiber and Coractive optical fiber in Finland. At the same time, if customers have Nufern needs, we will assist customers in purchasing customs clearance. For details, please refer to our fiber-optic navigation bar.

    Seed source:
    Pump beam splitter Pump combiner
    We can customize various types of pump bundles for customers, multimode (2+1) *1, (6+1) *1, N*1 (N < 19), and partial N (2+1) *1, (6+1) *1, N*1. fiber can be specified by the client. We mainly use the pump combiner of Idealphotonics, which has high coupling efficiency and stable performance.
    Fiber Bragg grating

    Pattern matcher MFA
    Collimator / high power output isolator
    Fiber-optic end cap
    High power isolator
    Our high power isolator covers several watts to 100W, and the wavelength is complete. It is the first choice for your optical isolator. High isolation, low loss, long term and reliable stability.
    Detector PD
    Bandpass filter
    There are many kinds of filters in our stock. The bandwidth is complete. 1nm, 2nm, 5nm, 8m, 10nm, 1030-1064, and 1310/1550nm filters are stored in stock for a long time. Other special wavelengths can be customized. Other related specific matters, you can call to consult. We will answer for you enthusiastically. Click on more details of the product.