Vienna, Austria – 1 September 2026 – ANRITSU CORPORATION launches the AH15203A/B, a 140 Gbaud wideband linear amplifier with integrated bias tee. Designed for engineers developing next-generation optical transmission devices, the new amplifier helps simplify high-speed device characterization by delivering the broadband, high-output signal conditioning required for the Beyond-1 Tb era.

With a broad frequency response from 200 kHz to 125 GHz (-6 dB bandwidth), the AH15203A/B amplifies PAM4 signals up to 140 Gbaud with a maximum output of 2.0 Vpp. Its +15.0 dB gain and low jitter performance of 300 fs maximum help engineers maintain signal fidelity, compensate for transmission-path losses, and perform more reliable waveform evaluation during high-speed optical device development.

The AH15203A/B can amplify 140 Gbaud PAM4 signals from DSPs and other signal sources, while directly driving optical devices that require high-amplitude offset signals, such as modulators. This makes it well suited for characterizing optical modulators used in next-generation 800GbE and 1.6TbE digital coherent transmission systems, as well as IM-DD optical modulators widely deployed in optical communications. For engineers, this provides a practical way to validate demanding device performance with greater confidence and efficiency.

By combining wide bandwidth, high output, low jitter, and an integrated bias tee in a compact drive amplifier, Anritsu helps customers reduce test complexity, improve confidence in measurement results, and accelerate the deployment of faster, more reliable data centre and network infrastructure.

Visitors to ECOC 2026, taking place from 21 to 23 September in Malaga, Spain, will be able to see the AH15203A/B demonstration and speak with Anritsu experts at stand 2075.

Development Background
Growth in AI, machine-learning, and cloud-service traffic is pushing data centre and network operators to increase capacity while maintaining signal quality, energy efficiency, and operational reliability.

To support these requirements, IEEE 802.3dj is advancing standardization for 200 Gbps/lane IM-DD modulation and digital coherent configurations including 800GBASE-LR1 (10 km), 800GBASE-ER1-20 (20 km), and 800GBASE-ER1 (40 km). In parallel, IEEE 802.3ds standardization is progressing toward optical links operating at 200 Gbps per wavelength for short-reach communications below 30 m. As speeds increase, signal attenuation becomes more challenging, creating a clear need for high-output linear drivers with integrated bias tee that can faithfully amplify PAM signals and directly drive EML, DML, and VCSEL devices during development and validation.

Product Outline
The AH15203A/B high-output linear amplifier supports 140 Gbaud PAM4 signal evaluation at up to 2.0 Vpp. With a 125 GHz bandwidth and integrated bias tee, it enables engineers to generate high-quality, high-speed drive signals without increasing setup complexity. Its low power consumption of 1.5 W also supports more efficient test environments, helping customers manage performance, space, and power considerations in advanced optical device characterization.

A dedicated power supply further helps reduce the risk of incorrect power handling, contributing to safer operation and greater confidence when integrating the amplifier into high-frequency test setups.

Target Markets: High-speed optical and electrical device manufacturers; optical signal test and measurement-instrument manufacturers
Applications: High-speed optical device characterization at up to 140 Gbaud

Technical Terms
*1 Linear Amp
Amplifier that magnifies the input signal by a fixed ratio and output result. Linear amplifiers are essential for driving devices, such as optical modulators, used in optical communications networks.

*2 Bias Tee
A component that superimposes and supplies — or extracts — DC voltage or current onto RF signal line.

*3 PAM4
PAM is an abbreviation for Pulse Amplitude Modulation scheme that increases transmission capacity through amplitude modulation. PAM4 uses four amplitude levels (00, 01, 10, 11) to encode two bits per symbol.

*4 Gain
Characteristics describing the relationship between input signal frequency and corresponding output amplification ratio.

*5 Jitter
Measure of timing fluctuations in digital signal. Excessive jitter causes incorrect recovery of digital signal values, resulting in bit errors.

*6 DSP
Abbreviation for Digital Signal Processor — microprocessor optimized for processing digital signals.

*7 Digital Coherent
Transmission scheme that encodes information using light phase and polarization. Its low signal degradation makes it ideal for high-capacity, long-distance optical transmission.

*8 IM-DD
Abbreviation for Intensity Modulation – Direct Detection. Transmission scheme that encodes information by modulating intensity of light and recovers it at receiver by direct detection.

About Anritsu
ANRITSU CORPORATION (www.anritsu.com), a global provider of innovative communications test and measurement solutions for 130 years. Anritsu’s philosophy engages customers as true partners to help develop wireless, optical, microwave/RF, and digital solutions for R&D, manufacturing, installation, and maintenance applications, as well as multidimensional service assurance solutions for network monitoring and optimization. Anritsu also provides precision microwave/RF components, optical devices, and high-speed electrical devices for communication products and systems. The company develops advanced solutions for 5G, M2M, IoT, as well as other emerging and legacy wireline and wireless communication markets. Headquartered in Japan, Anritsu has approximately 4,000 employees across its offices in the Americas, EMEA, Asia, and other regions worldwide.

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