Optical Connections Magazine Autumn 2023

PRODUCT NEWS

Amplitude Optical Modulators O, C & L Bands: Digital and Analogue

Lithium niobate (LiNbO 3 ) intensity modulators are designed for modulation

frequencies larger than 30GHz. The X-cut design of the Mach-Zehnder modulators provides an unmatched stability in a wide range of operational conditions plus zero chirp performance. Exail’s proprietary waveguide design offers low insertion loss with a high contrast.

are optimised for peak-to-peak voltage, rise/fall times and jitter and the DR-AN is characterised by a low noise figure and a linear transfer function with optimised 1dB compression point. The driver exhibits flat group delay and gain curves with reduced ripple over the bandwidth.

Applications include digital modulation NRZ, RZ, DPSK, duo binary modulation formats, up to 44Gb/s-NRZ, QPSK-56Gb/s and analogue modulation up to 40GHz. Matching modulator digital driver amplifiers are DR-DG and the DR-AN family for analogue applications. The DR-DG drivers

Key features • low insertion loss • high bandwidth • zero chirp • low driving voltage • high second harmonic rejection

Further details: www.lasercomponents.com/uk/

Two New Optical Spectrum Analysers From Yokogawa Test & Measurement

Yokogawa Test & Measurement Corporation released the AQ6373E visible wavelength and AQ6374E wide range optical spectrum analysers. Designed as successors to the AQ6373B and AQ6374, which feature high resolution and close-in dynamic range, the new analysers offer the same high level of performance as well as features that improve operability to meet a variety of optical spectrum measurement needs in both R&D and production settings. The AQ6373E optical spectrum covers the same wavelength range between 350 nm and 1200 nm as the current AQ6373B. In addition to a standard performance model, the lineup now includes a high-resolution model optimised for laser evaluation applications and a limited model designed for production testing applications. The new optical spectrum analysers both feature improved usability, including an APP mode designed to speed up customers’ R&D and production testing tasks.

of optical fibres. It offers the high optical performance of the previous AQ6374 model, providing the industry’s only wide measurement wavelength range (350 - 1750 nm).

equipped with a large LCD touch panel, making operation even easier and more intuitive. The AQ6374E optical spectrum analyser can be used not only for the evaluation of light- emitting devices such as lasers but also for the characterisation

APP mode provides a device under test (DUT) specific user interface that navigates the user from configuration setting to the output of test results, so that even customers who are unfamiliar with optical spectrum analysers can use them easily. They are also

https://tmi.yokogawa.com/

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| ISSUE 34 | Q3 2023

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