Fiber Coupled 520nm diode and others between 420-440nm

hello everyone today i was searching for diodes on google and i saw this diode:

LDX-3125-520-FC: 520nm Fiber Coupled Laser Diode - Solid State Lasers and Laser Diodes from RPMC Lasers Inc

i dont know exactly the differences with the normal diodes but this has a weird can(to fit a fiber i guess) but my eyes stuck on the "700mw 520nm output".

so what output this weird can could have?


also on the same site i noticed another very interesting diode.they have diodes with wavelengh 420,425,430,435 and 440nm which i never saw before and if they exist they will be something between violet and blue.

links
TG420: 420nm Blue Laser Diode - Solid State Lasers and Laser Diodes from RPMC Lasers Inc
50mW Laser Diode Blue | 425nm Single Mode Laser Diode
50mW Blue Laser Diode | 430nm Single Mode Laser Diode
TG435: 435nm Blue Laser Diode - Solid State Lasers and Laser Diodes from RPMC Lasers Inc
TG440: 440nm Blue Laser Diode - Solid State Lasers and Laser Diodes from RPMC Lasers Inc