The 120Gbps VCSEL Array Based Optical Transmitter (ATx) development for the High-Luminosity LHC (HL-LHC) experiments

Abstract

The integration of a Verticle Cavity Surface-Emitting Laser (VCSEL) array and a driving Application-Specific Integrated Circuit (ASIC) in a custom optical array transmitter module (ATx) for operation in the detector front-end is constructed, assembled and tested. The ATx provides 12 parallel channels with each channel operating at 10 Gbps. The optical transmitter eye diagram passes the eye mask and the bit-error rate (BER) less than 10 −12 transmission is achieved at 10 Gbps/ch. The overall insertion loss including the radiation induced attenuation is sufficiently low to meet the proposed link budget requirement.

Carbon Nanofiber Aggregate Sensors for Sustaining Resilience of Civil Infrastructures to Multi-Hazards

“…For example, during flooding or heavy rain, wires may become wet and thus provide poor signals, while wireless communication can be made to be more immune to water damage. As presented in Figure 8, the wireless communication hardware development can leverage our previous R&D works in which we have demonstrated a wideband cognitive radio transceiver and wireless channel emulator through a National Science Foundation (NSF)-funded project [10], a radiation-hard 6-12 GHz 00.37pS RMS jitter wideband LC-VCO phase-locked loop (PLL) [11], and radiationtolerant application specific integrated circuits (ASICs) for CERN's large hadron collider (LHC) detectors [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. In developing the wireless transceiver, commercial off-the-shelf (COTS) radiationhardened components based on Silicon-on-Sapphire (SOS) and Silicon on Insulator (SOI) technology should be utilized.…”

The VCSEL-based array optical transmitter (ATx) development towards 120-Gbps link for collider detector: development update

“…The ATx module needs to be soldered onto the mother board through the "edgewrap". Another version of the ATx module with a pluggable connector is also designed [3]. The substrate is 1.9 cm × 2.2 cm × 0.9 mm in size, and the lateral dimensions of a complete ATx module with MOI and Prizm connector are shown in figure 2 than 10 −12 transmission was achieved at 10 Gbps/channel, which proved function of the electrical interface and the optical interface at a speed up to 10 Gbps/channel.…”

“…The ATx supports multi-mode operation at 850 nm wavelength over 100 meters of OM3 or OM4 fibers and works with commercial parallel receivers at the back-end. Prior work has validated several ATx custom packages with 10 Gbps per channel transmission [3].…”

A 4 × 14-Gbps/ch VCSEL array driving ASIC in 65 nm CMOS for high-energy physics experiments

“…Moreover, certain commercial array optical components have also been verified to be radiation tolerant [3]. A few VCSEL based array optical transmitters [3][4][5] have been demonstrated for the high-energy physics applications, in which the array VCSEL driver becomes the remaining critical component. Several VCSEL array driving ASICs have been reported for the front-end optical data transmission of high-energy physics experiments, like LOCld4 [6], VLAD/lpVLAD [7], GBLD10+ [8] and LDQ10 [9], with the maximum data rate of 10-Gbps/ch.…”