Optical spectrum of a 100 Gbps DP-MB-OFDM measured by the High Resolution Optical Spectrum Analyser The Apex Technologies Ultra High Resolution Optical Spectrum Analyser is a high efficient tool for generating and adjusting coherent Dual-Polarisation Multi-Band Orthogonal Frequency Division Multiplexing (DP-MB-OFDM) signals. This paper shows an experimental comparison of the DP-MB-OFDM signals and Quadrature Phase Shift Keying QPSK for...
Lambda News
Lambda is a leading supplier of characterisation, measurement and analysis equipment, applied to signals from DC to Light. Our company provides hardware, software and integrated solutions throughout the UK & Ireland.
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64-QAM-encoded Optical OFDM signal spectrum measurement using High Resolution Optical Spectrum Analysers
Real-time 64-QAM-encoded OOFDM signal spectra at the output of the VCSEL intensity modulator with equal power loading and adaptive power loading using High Resolution Optical Spectrum Analyser. This paper shows the contribution of the Apex Technologies High Resolution Optical Spectrum Anlyser in evaluating low-cost, un-cooled vertical cavity surface-emitting lasers (VCSELs) as intensity modulators in real-time optical OFDM (OOFDM) transceivers. ... -
Ultra High Resolution Optical Spectrum Analyser used for Generation of Coherent Multi-Carrier Signals by Gain Switching of Discrete Mode Lasers
Expanded frequency optical comb spectrum measured by APEX Technologies High Resolution Optical Spectrum Analyser This paper shows the utility of the Apex Technologies High Resolution Optical Spectrum Analyser AP2040/AP2050 series in the generation of a highly coherent multi-carrier signals. It consists on eight clearly resolved 10.7GHz coherent sidebands generated within 3dB of the spectral envelope peak and with an... -
Gain Measurements of Fabry-Pérot InP/InGaAsP Lasers using an Ultra High Resolution Optical Spectrum Analyser
Typical example of a recorded subthreshold spectrum of a Fabry-Perot laser made with APEX Technologies ultra high resolution Optical Spectrum Analyser. This application note presents the time measurements of the optical gain in a semiconductor laser using the Apex Technolgoies High Resolution Optical Spectrum Analyser AP2040/AP2050 series. The high resolution allows for accurate gain measurements close to the lasing... -
High Resolution Optical Spectrum Analyser used for Experimental demonstration of 23.6-Gb/s OFDM with a colourless transmitter
Optical Spectrum of the 23.6-Gb/s OFDM signal measured with APEX Technologies High resolution Optical Spectrum Analyser This paper shows the great utility of the Apex Technologies High Resolution Optical Spectrum Analyser AP2040/AP2050 series in demonstrating a 23.6-Gb/s optical Orthogonal Freqency Division Multiplexing (OFDM) (20-Gb/s after coding) with a colourless transmitter, realised by optical IQ multiplexing. In combination with 8-QAM coding... -
Ultra High Resolution Optical Spectrum Analyser/Optical Complex Spectrum Analyser for Characterising and Evaluating Optical Frequency Comb Sources
Spectral measurement of a Comb with 20 MHz repetition frequency made by the APEX Technologies High Resolution Optical Spectrum Analyser This paper is devoted to present the capacity of the Apex Technologies High Resolution Optical Spectrum Analyser/Optical Complex Spectrum Analyser to show clearly all the Optical Comb sidebands even with a few tens of MHz spacing. Two commercial Optical Frequency... -
White Paper: The Importance of Verifying a Reference Reflection for Accurate RL Measurements
High return loss in a network or data centre is an issue that can cause a number of problems ranging from source stability to increased BER and a lower signal-to-noise ratio. As a result, pass/fail criteria on fibre optic connections has jumped in recent years as advancements in polishing techniques have allowed for fibre optic matings with lower reflections. Click... -
Current Vacancies
Lambda Photometrics is a leading supplier of characterisation, measurement and analysis equipment applied to signals, from DC to Light. Our company offers hardware, software and integrated solutions. Lambda provides non-contact measurement systems, machine vision solutions, laser and electrical test and measurement equipment to a wide customer base. Microscopy Sales and Applications Engineer Download job description. Metrology Sales... -
New partnership with Xiton Photonics GmbH
Lambda Photometrics are delighted to announce an exciting new partnership to promote Xiton Photonics GmbH products in the UK & Ireland. For more than 10 years Xiton Photonics GmbH has been producing high-quality, DPSS lasers with a core expertise in nonlinear optical conversion that has enabled Xiton to develop lasers with deep ultraviolet (UV) wavelengths of 224, 213 & 193nm... -
New EX series – Baumer quality at low prices
The new industrial cameras of the Baumer EX series focus on essential standard-compliant basic functions and therefore are ideal for varied typical machine vision applications. Integrating the latest generation of CMOS sensors in their robust metal housing, they provide long-term stability in application designs. With resolutions from VGA up to 2 megapixel and up to 217 frames per second, the...