Alliance Fiber Optic Products, Inc. is Pleased to Announce the Following New Products at the Optical Fiber Conference in Atlanta, GA.

Business Editors/High-Tech Writers

OFC 2003

Booth #2450

SUNNYVALE, Calif.--(BUSINESS WIRE)--March 12, 2003

Alliance Fiber Optic Products, Inc. (Nasdaq:AFOP), an innovative supplier of fiber optic components, subsystems and integrated modules for the optical network equipment market, today announced the new products that will be exhibited at the Optical Fiber Conference (OFC). The OFC show will take place on March 25 - 27, 2003 at the Georgia World Congress Center, Atlanta, Ga., and these products can be seen at our booth #2450.

SpectraMux(TM) -- Compact Coarse WDM

AFOP's new SpectraMux Compact CWDM module design offers significantly reduced cost in a package 1/4 the size of conventional CWDM modules. With a channel spacing of 20 nm and wide bandpass characteristics it is ideal for use with non-temperature controlled lasers. Other features include high center wavelength accuracy and stability, low insertion loss, high directivity, an epoxy-free optical path, and low polarization dependent loss.

These Compact CWDM Mux/Demuxes are available in four or eight channels and include an expansion port. AFOP's SpectraMux Compact CWDMs are designed to meet or exceed Telcordia requirements for performance and reliability. Custom wavelengths and channel configurations are available.

In addition at OFC:

AFOP continues to build on its proven CWDM product line by offering a Modular CWDM Chassis system. This modular system is designed to accept all of our CWDM functions, while offering the user greater flexibility in deployment. This CWDM Line is ideal for use in system designs where expansion or later modifications are important. Custom versions are also available to meet special applications.

Isolators

AFOP also offers single stage and dual stage optical isolators, which minimize back reflection and reverse transmission at any state of polarization. The Polarization Insensitive Isolator (PII) is a low cost model with excellent performance including low insertion loss, high isolation, low PDL and PMD. This device has an epoxy free optical path, making it ideal for use in enable high power EDFA applications. It is available in both C and L band versions.

Circulators

AFOP's Optical Circulators are non-reciprocal devices that redirect light sequentially from port-to-port in only one direction. In advanced optical communication systems, circulators are used for bi-directional transmission, WDM networks, fiber amplifier systems, and for optical time domain reflectometer (OTDR) measurements. AFOP 3 and 4-port circulators feature a small package size, high isolation over a wide operational wavelength range, low insertion loss, low polarization dependent loss, and excellent stability.

Come visit AFOP at OFC 2003, Booth #2450. For additional information, please contact our sales department at 408/736-6900 or via e-mail [e-mail].

About AFOP

About AFOP Founded in 1995, Alliance Fiber Optic Products, Inc. designs, manufactures and markets a broad range of high performance fiber optic components and integrated modules. AFOP's products are used by leading and emerging communications equipment manufacturers to deliver optical networking systems to the long-haul, metropolitan and last mile access segments of the communications network. AFOP offers a broad product line of passive optical components including interconnect systems, couplers and splitters, thin film DWDM components and modules, fixed and variable optical attenuators, and depolarizers. AFOP is headquartered in Sunnyvale, California, with manufacturing and product development capabilities in the United States, Taiwan and China. AFOP's website is located at http://www.afop.com.

Forward-looking Statements

Except for the historical information contained herein, the matters set forth in this press release, including statements as to the expected availability, features and benefits of AFOP's products, are forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially, including, but not limited to, manufacturing difficulties, possibly delays in the release of other products, the impact of competitive products, and other risks detailed from time to time in AFOP's SEC reports, including its Quarterly Report on Form 10-Q for the period ended September 30, 2002. These forward-looking statements speak only as of the date hereof. AFOP disclaims any intention or obligation to update or revise any forward-looking statements.