You need to be looking under the show chassis hardware stanza. That gives you all the inner-workings of the devices plugged into the chassis, including VC members.
On an MX platform, this is along the lines of what you'd expect:
user@host> show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
Chassis E1372 MX10-T
Midplane REV 01 711-038211 YF5285 MX10-T
PEM 0 Rev 04 740-028288 VB01678 AC Power Entry Module
Routing Engine BUILTIN BUILTIN Routing Engine
TFEB 0 BUILTIN BUILTIN Forwarding Engine Processor
QXM 0 REV 05 711-028408 ZA9053 MPC QXM
FPC 0 BUILTIN BUILTIN MPC BUILTIN
MIC 0 BUILTIN BUILTIN 4x 10GE XFP
PIC 0 BUILTIN BUILTIN 4x 10GE XFP
FPC 1 BUILTIN BUILTIN MPC BUILTIN
MIC 0 REV 24 750-028392 YX9436 3D 20x 1GE(LAN) SFP
PIC 0 BUILTIN BUILTIN 10x 1GE(LAN) SFP
Xcvr 0 REV 01 740-031851 AM1107SUFQW SFP-SX
PIC 1 BUILTIN BUILTIN 10x 1GE(LAN) SFP
Fan Tray Fan Tray
Sample information derived from Juniper TechLibrary
Or perhaps you don't buy everything from Juniper and/or you live in a multi vendor environment (like me). Your system will look eerily similar to this:
FPC 0 REV 20 750-045402 LX0XXXXXXXXX EX4550-32F
CPU BUILTIN BUILTIN FPC CPU
PIC 0 BUILTIN BUILTIN 32x 1G/10G SFP/SFP+
Xcvr 0 REV 01 740-021309 ARS0HB7 SFP+-10G-LR
Xcvr 1 REV 01 740-021309 ARS0HB2 SFP+-10G-LR
Xcvr 12 c NON-JNPR FNS0838H4CB SFP-LX10
Xcvr 13 NON-JNPR FNS0838H4AJ SFP-LX10
Xcvr 14 M NON-JNPR FNS0835T08U SFP-LX10
Xcvr 15 NON-JNPR FNS0838H4B0 SFP-LX10
Xcvr 16 U NON-JNPR FNS0835T0C2 SFP-LX10
Although this is on an EX4550, the transceivers marked NON-JNPR would show up the same on an MX platform. It's not a malfunction, the system just doesn't recognize the device signatures. If you want additional information on them, such as the vendor, fiber wavelength, or fiber type, use the show chassis pic fpc-slot <FPC> pic-slot <PIC>.
rj@MHN00525CN01> show chassis pic fpc-slot 0 pic-slot 0
FPC slot 0, PIC slot 0 information:
Type 32x 1G/10G SFP/SFP+ Builtin
State Online
Uptime 56 days, 6 hours, 5 minutes, 6 seconds
PIC port information:
Fiber Xcvr vendor Wave- Xcvr
Port Cable type type Xcvr vendor part number length Firmware
0 10GBASE LR SM FINISAR CORP. FTLX1471D3BCL-J1 1310 nm 0.0
1 10GBASE LR SM FINISAR CORP. FTLX1471D3BCL-J1 1310 nm 0.0
12 GIGE 1000LX10 SM CISCO-FINISAR FTRJ-1319-7D-CSC 1310 nm 0.0
13 GIGE 1000LX10 SM CISCO-FINISAR FTRJ-1319-7D-CSC 1310 nm 0.0
14 GIGE 1000LX10 SM CISCO-FINISAR FTRJ-1319-7D-CSC 1310 nm 0.0
15 GIGE 1000LX10 SM CISCO-FINISAR FTRJ-1319-7D-CSC 1310 nm 0.0
16 GIGE 1000LX10 SM CISCO-FINISAR FTRJ-1319-7D-CSC 1310 nm 0.0
Most of the time, though, show chassis hardware will be more than sufficient.
Best Answer
It's not terribly difficult to train yourself, if you care about the doing. If you care about selling yourself more, BICSI will happily take your money as a certifier. Probably better if you can get your employer to have you certified as continuing education so BICSI can take their money, but if it's not applicable enough to your job, it's not.
When I was teaching myself (for work, but the budget was low) I managed to attend a quasi-local fiber optic conference which had lots of BICSI training classes as part of the offerings (but attendees could attend regardless of affiliation - BICSI members would get their cards stamped [or equivalent] to prove they had kept up with training classes.) I've also done some online training webinars under the same circumstances.
As someone new to fiber optics who had actually read and understood the basic background information, I found that there was very little new content to most of these training sessions (and many of them were not-so-subtle sales pitches for some company's product, yet they were an approved training class.)
I remain unaffiliated with BICSI, but I built a fiber optic network that has been running for 6 years now with few problems, and at a very attractive price for my employer. But I don't have any certificate for that...
By the way, if you are talking about "custom length patch cables" rather than fiber in walls or between buildings, I can save you the bother - the industry-wide recommendation is to order those factory made, it's almost always a better cable that's more cost effective. Concentrate on remembering to inspect and clean before every connection, and put your initial educational effort there.