ALPS has developed the FLGPJ series of aspheric glass lenses for small, high-density fiber-optic transceivers, and will begin mass production in July.

Recently, due to the growing popularity of mobile devices such as smart phones and tablets, and the improvement of broadband communication networks using fiber optics and so on, SNS, games, video transmission and other large-capacity data sending and receiving services have emerged. The amount of data communication on the Internet is also increasing year by year. In the future, with the gradual introduction of "IoT (Internet of Things)" by various industries, the amount of data communication will further increase.

Data centers that bear the heavy burden of data storage and infrastructure companies that expand communication networks are making great efforts to promote the miniaturization of optical communication system equipment mainly composed of optical fiber transceivers. They are striving to meet the requirements of large-capacity communication network by setting multiple devices in a limited space. Therefore, the need for equipment must be miniaturized and high-density. Similarly, the need for the miniaturization of the electronic parts carried on the equipment is also increasing.

To date, ALPS has mass-produced square aspheric glass lenses with a width and height of 1mm for fiber-optic transceivers. This time, ALPS has successfully developed a narrow aspheric glass lens with clamping area type "FLGPJ series".

The width of the product is only 0.6mm, which realizes the narrowness. Through the upper loading area of the card, the operation of the installer during assembly and adjustment is improved, which makes a contribution to high density mounting. In addition, the product is not only small in size, but also achieves effective NA (Numerical Aperture) of 0.5.Moreover, this product lens adopts lead-free glass, in line with ROHS6 and REACH two major standards.

With more than 25 years of experience in the optical communication market, ALPS has contributed to the miniaturization and high density of optical communication equipment by providing a steady supply of high-quality products.

【 Main Specialties 】

Through the upper part of the product loading area, improve the operation of the installation and assembly

The clamping area is set on the 0.6mm narrow lens to improve the installation and mounting efficiency

Not only is the width only 0.6mm, but also NA0.5 (focal distance 0.45mm@1310nm) is achieved.

Adopt lead-free glass material, in line with ROHS6 and REACH standards

【 Main use 】

Multichannel fiber optic receiver

[Sales Plan]

Mass production in July 2017

The sample price is 3000 yen (tax included).

Monthly production of 5000 pieces (scheduled in July 2017)

Development Department Technology Manager Okaoka Factory (Nagaoka City, Niigata Prefecture)

Production Department Production Head Office Nagaoka Factory (Nagaoka City, Niigata Prefecture)

【 Main Specifications 】

Product name FLGPJ series

Dimensions (W×D×H)0.6mm×0.8mm×1.5mm

Applicable wavelength example λ[nm]1310/1550nm

Effective NA0.5/0.55

Focus Distance F [mm]0.45(1310nm)

Applicable device CHIP type LD (double lens system)

L1 (WD) (mm), 0.14 (1310 nm)

Beam diameter reference [mm]φ0.45(1310nm) effective Na

Operating temperature range -40℃ ~ +85℃

Transmitted wave aberration

0.045 lambda (RMS: Root Mean Square)

Transmissivity 98%(1310nm, 1550nm)